Atomizer and electronic atomization device

Abstract

The utility model discloses an atomizer and an electronic atomization device. The atomizer comprises a liquid storage shell and a first end cover arranged in the liquid storage shell. A liquid storage space and an airflow channel are formed in the liquid storage shell, and one end of the liquid storage space is sealed and covered by the first end cover; the first end cover is provided with at least one capillary channel, and the at least one capillary channel is communicated with the airflow channel and the liquid storage space. Condensate accumulated in the air flow channel flows back to the liquid storage space through the capillary channel, the risk that the condensate in the air flow channel is sucked into the mouth of a user is reduced, the condensate can be recycled into the liquid storage space to be reused, and the utilization rate of the aerosol generating matrix is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic atomization, and in particular to an atomizer and an electronic atomization device. Background Art

[0002] Electronic atomization devices are usually used to heat and atomize the aerosol-generating matrix stored therein to form atomized gas for users to inhale. Users generally inhale the atomized gas through the inhalation channel in the airflow channel of the electronic atomization device. During the inhalation process, part of the atomized gas will condense on the inner wall of the airflow channel to form condensate. If it is not handled, the user is likely to inhale the condensate into the mouth, thereby affecting the user experience. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an improved atomizer and an electronic atomization device to reduce the risk of condensed liquid in the air flow channel being sucked into the user's mouth.

[0004] The utility model solves the technical problem by adopting the following technical solution: providing an atomizer, which comprises a liquid storage shell and a first end cover arranged in the liquid storage shell; a liquid storage space and an air flow channel are formed in the liquid storage shell, and the first end cover seals one end of the liquid storage space; the first end cover is provided with at least one capillary channel, and the at least one capillary channel is respectively connected with the air flow channel and the liquid storage space.

[0005] Preferably, the airflow channel comprises a first airflow channel and a second airflow channel that are connected;

[0006] The liquid storage space surrounds the periphery of the second air flow channel;

[0007] The first end cap is disposed between the first air flow channel and the liquid storage space, and the at least one capillary channel connects the first air flow channel and the liquid storage space.

[0008] Preferably, the liquid storage shell comprises a shell and a suction nozzle connected to each other;

[0009] The second air flow channel and the liquid storage space are formed inside the shell;

[0010] The first air flow channel is formed inside the suction nozzle;

[0011] The first end cover is arranged between the housing and the suction nozzle.

[0012] Preferably, the first end cover comprises a first surface facing away from the liquid storage space, a second surface facing the liquid storage space, and a through hole penetrating the first surface and the second surface;

[0013] The through hole is communicated with the air flow channel, and each of the capillary channels is distributed on the hole wall surface of the through hole and the second surface.

[0014] Preferably, a plurality of first bosses protruding in a direction close to the central axis of the through hole are arranged at intervals on the hole wall surface of the through hole, and the capillary channels distributed on the hole wall surface of the through hole are formed between adjacent first bosses.

[0015] Preferably, a plurality of second bosses arranged at intervals are formed on the second surface, and the capillary channels distributed on the second surface are formed between adjacent second bosses.

[0016] Preferably, a plurality of third bosses arranged at intervals are further formed on the second surface, the third bosses are distributed on the periphery of each of the second bosses, and a groove connected to the capillary channel is formed between the third bosses and the second bosses.

[0017] Preferably, the through hole comprises a first part and a second part which are interconnected, the cross-sectional area of ​​the first part is larger than the cross-sectional area of ​​the second part, and the first part is farther away from the liquid storage space than the second part;

[0018] At least one of the capillary channel portions is disposed on the pore wall surface of the second portion.

[0019] Preferably, the atomizer further comprises a liquid storage member disposed in the liquid storage space, and the first end cover is in contact with the liquid storage member;

[0020] Alternatively, the atomizer further comprises a liquid storage member disposed in the liquid storage space, and the first end cover is spaced apart from the liquid storage member;

[0021] and / or, at least one of the capillary channels is a capillary groove;

[0022] And / or, at least one of the capillary channels has a width of 0.3 mm to 1 mm.

[0023] The utility model also provides an electronic atomization device, which comprises the atomizer described in any one of the above items and a power supply device connected to the atomizer.

[0024] The utility model has at least the following beneficial effects: the condensed liquid accumulated in the airflow channel will flow back to the liquid storage space via the capillary channel, thereby reducing the risk of the condensed liquid in the airflow channel being sucked into the user's mouth, and the condensed liquid can be recovered into the liquid storage space for repeated use, thereby improving the utilization rate of the aerosol generation matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0026] Figure 1 This is a schematic diagram of the structure of an electronic atomization device according to an embodiment of the utility model;

[0027] Figure 2 yes Figure 1 An exploded structural diagram of the electronic atomization device shown;

[0028] Figure 3 yes Figure 1 A vertical cross-sectional view of the electronic atomization device shown;

[0029] Figure 4 yes Figure 2 An exploded structural diagram of an atomizer of the electronic atomization device shown;

[0030] Figure 5 yes Figure 4 A schematic structural diagram of the atomizer from a first end cover perspective;

[0031] Figure 6 yes Figure 5 a vertical cross-sectional view of the first end cap shown;

[0032] Figure 7 yes Figure 5 A schematic diagram of the structure of the first end cover from another viewing angle is shown;

[0033] Figure 8 It is a structural schematic diagram from one viewing angle when the first end cover and the ventilation pipe of the electronic atomization device of one embodiment of the utility model are installed together. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0035] Figures 1 to 3An electronic atomization device of an embodiment of the utility model is shown, which is roughly cylindrical and may include a power supply device 2 and an atomizer 1 arranged longitudinally above the power supply device 2. The atomizer 1 is used to accommodate an aerosol generating matrix and heat and atomize the aerosol generating matrix to generate an aerosol, and the power supply device 2 is used to power the atomizer 1. It can be understood that in other embodiments, the electronic atomization device is not limited to being cylindrical, and it can also be in other shapes such as an elliptical column, a square column, a flat column, etc. The power supply device 2 may include a housing 21 and a battery 20 accommodated in the housing 21. The battery 20 is electrically connected to the heating component 32 of the atomizer 1 for powering the heating component 32. The housing 21 may be roughly cylindrical, and the battery 20 may be accommodated in the lower part of the housing 21, and the upper part of the housing 21 is formed with a receiving space for accommodating the atomizer 1. During assembly, the atomizer 1 is extended into the receiving space, and then the atomizer 1 is connected and fixed to the housing 21.

[0036] like Figures 1 to 3 In the embodiment shown, the atomizer 1 includes a liquid storage shell 10 and a first end cap 11 disposed in the liquid storage shell 10. A liquid storage space 5 and an air flow channel 4 are formed in the liquid storage shell 10, and the first end cap 11 covers one end of the liquid storage space 5, thereby sealing the liquid storage space 5 to a certain extent. At least one capillary channel 40 is provided on the first end cap 11, and at least one capillary channel 40 is respectively connected to the air flow channel 4 and the liquid storage space 5, so that the air flow channel 4 and the liquid storage space 5 are connected through at least one capillary channel 40. Thus, the condensate accumulated in the air flow channel 4 will flow back to the liquid storage space 5 via the capillary channel 40, reducing the risk of the condensate in the air flow channel 4 being sucked into the user's mouth, and the condensate can be recycled into the liquid storage space 5 for reuse, thereby improving the utilization rate of the aerosol generating matrix. In addition, from a process point of view, the condensate can be recycled by only designing the capillary channel 40 on the first end cap 11, without introducing other parts, fewer assembly processes, higher assembly efficiency, and lower cost.

[0037] Among them, the capillary channel 40 refers to a channel that is long and thin enough to produce a capillary effect. For example, the width of the capillary channel 40 can be 0.3mm to 1mm. That is, the width of the capillary channel 40 can be 0.3mm, 1mm, or any value between 0.3mm and 1mm. The width of the capillary channel 40 refers to the maximum width in the cross-sectional direction, and the cross-sectional direction is perpendicular to the fluid flow direction in the capillary channel 40. For example, when the capillary channel 40 is a circular channel, its width refers to the inner diameter. Therefore, the condensate located in the airflow channel 4 is subjected to the capillary force of the capillary channel 40, is sucked into the capillary channel 40, and finally enters the liquid storage space 5 for further use.

[0038] In some embodiments, at least one capillary channel 40 may be a capillary groove, or at least one capillary channel 40 may be a capillary tube, or at least one capillary channel 40 may be a combination of a capillary groove and a capillary tube.

[0039] like Figure 3 In the illustrated embodiment, the airflow channel 4 includes a first airflow channel 41 and a second airflow channel 42 that are connected. The liquid storage space 5 surrounds the periphery of the second airflow channel 42. Specifically, the liquid storage space 5 is annular and surrounds the outer side of the second airflow channel 42. The first end cover 11 is arranged between the first airflow channel 41 and the liquid storage space 5, and at least one capillary channel 40 connects the first airflow channel 41 and the liquid storage space 5. Specifically, the liquid storage shell 10 has a relative nozzle end and a bottom end. The aerosol in the airflow channel 4 overflows through the nozzle end for the user to inhale. The first airflow channel 41 is closer to the nozzle end of the liquid storage shell 10 than the second airflow channel 42, and the first airflow channel 41 is farther away from the heating component 32 than the second airflow channel 42. The temperature difference between here and the heating component 32 is large, and condensation is more likely to be generated. Therefore, the first airflow channel 41 is connected to the liquid storage space 5 by using the capillary channel 40, and the condensate can be recovered from the position where the condensate is more likely to be generated in the airflow channel 4 under the capillary force provided by the capillary channel 40 and the gravity of the condensate itself. Of course, at least one capillary channel 40 can also connect the second airflow channel 42 to the liquid storage space 5. Under the suction force of the user and the capillary force of the capillary channel 40, the condensate at the second airflow channel 42 can also be recovered into the liquid storage space 5, preventing the condensate from entering the user's mouth.

[0040] From the perspective of physical structure, Figure 3 and Figure 4 In the illustrated embodiment, the liquid storage housing 10 comprises a housing 101 and a suction nozzle 102 connected to each other. A first end cover 11 is disposed between the housing 101 and the suction nozzle 102.

[0041] Specifically, a second airflow channel 42 and a liquid storage space 5 are formed inside the housing 101. The housing 101 includes a barrel 1011 and a second end cap 1012 connected to the lower end of the barrel 1011. The atomizer 1 also includes a vent pipe 30 arranged inside the barrel 1011. The inner wall surface of the vent pipe 30 defines the second airflow channel 42, and the liquid storage space 5 is defined between the outer wall surface of the vent pipe 30 and the inner wall surface of the barrel 1011. The open end of the housing 101 is formed at one end (upper end) of the barrel 1011 away from the second end cap 1012, and the closed end of the housing 101 is formed at one end of the second end cap 1012 away from the barrel 1011. The first end cap 11 is sleeved on one end of the vent pipe 30. Specifically, the first end cap 11 is connected to one end (upper end) of the barrel 1011 of the housing 101 away from the second end cap 1012, that is, the first end cap 11 is connected to the open end of the housing 101. Between the first end cap 11 and the second end cap 1012, the outer wall of the vent pipe 30 and the inner wall of the cylinder 1011 define a liquid storage space 5. In some embodiments, the first end cap 11 and the second end cap 1012 can be made of elastic materials such as silicone to seal the two ends of the liquid storage space 5 and reduce leakage.

[0042] The atomizer 1 also includes a liquid storage part 31 arranged in the liquid storage space 5. The liquid storage part 31 is in the shape of a circular cylinder, and a perforation 310 for the ventilation tube 30 to pass through is formed in the longitudinal direction thereof. The liquid storage part 31 can be a liquid storage cotton. The first end cap 11 is in contact with the liquid storage part 31 or is arranged at intervals. That is, the liquid storage part 31 can occupy the liquid storage space 5, so that the first end cap 11 is in contact with the liquid storage part 31, or is interference fit, so that the capillary channel 40 is as close to the liquid storage part 31 as possible, so that the condensate can be directly adsorbed by the liquid storage part 31. Preferably, the outlet of the capillary channel 40 can directly contact the liquid storage part 31. Alternatively, the liquid storage part 31 can also only occupy part of the liquid storage space 5, and be separated from the first end cap 11 by a sufficiently small distance at one end, and the sufficiently small distance can enable the condensate to be sent into the liquid storage space 5 under the capillary force and absorbed by the liquid storage part 31.

[0043] A first air flow channel 41 is formed inside the suction nozzle 102. One end of the suction nozzle 102 away from the shell 101 forms the suction nozzle end of the above-mentioned liquid storage shell 10. The suction nozzle 102 includes a connecting portion 1021 and a central tube 1022. The connecting portion 1021 surrounds the periphery of the central tube 1022 and is connected to the cylinder 1011 of the shell 101; the upper end of the central tube 1022 is connected to the connecting portion 1021, and the lower end of the central tube 1022 extends in a direction close to the first end cover 11. The connecting portion 1021 and the central tube 1022 can be an integrally formed structure. The inner wall surface of the central tube 1022 defines the first air flow channel 41.

[0044] The atomizer 1 further includes a heating component 32. The heating component 32 is disposed in the liquid storage shell 10 and connected to the ventilation pipe 30, and is also in contact with the liquid storage part 31, and is used to heat and atomize the aerosol generating substrate stored in the liquid storage part 31 after power is turned on, and the generated aerosol flows upward from the ventilation pipe 30 to the suction nozzle 102 for the user to inhale.

[0045] like Figures 5 to 7 In the illustrated embodiment, the first end cover 11 includes a first surface 11a facing away from the liquid storage space 5, a second surface 11b facing the liquid storage space 5, and a through hole 113 passing through the first surface 11a and the second surface 11b. Figure 5 The first surface 11a of the first end cover 11 is shown. Figure 7 The second surface 11b of the first end cap 11 is shown. The through hole 113 is connected to the air flow channel 4, and each capillary channel 40 is distributed on the hole wall surface of the through hole 113 and the second surface 11b. That is, the capillary channel 40 extends from the hole wall surface of the through hole 113 to the second surface 11b, and the second surface 11b directly faces the liquid storage space 5. For ease of understanding, hereinafter, the capillary channel 40 distributed on the hole wall surface of the through hole 113 is referred to as a vertical capillary channel 40, and the capillary channel 40 distributed on the second surface 11b is a transverse capillary channel 40. The vertical capillary channel 40 and the transverse capillary channel 40 are connected.

[0046] Specifically, the through hole 113 is connected to the first airflow channel 41 and the second airflow channel 42 respectively. The condensate generated in the first airflow channel 41 flows downward under the action of gravity, and is guided toward the liquid storage space 5 through the vertical capillary channel 40 and the transverse capillary channel 40. Preferably, the first end cap 11 can be interference-fitted with the liquid storage member 31, so that the second surface 11b is as close to the liquid storage member 31 as possible, so that the transverse capillary channel 40 is as close to or directly contacts the liquid storage member 31 as possible, so that the liquid storage member 31 directly and quickly absorbs the condensate in the capillary channel 40.

[0047] like Figure 5 In the illustrated embodiment, a plurality of first bosses 1141 protruding in a direction close to the central axis of the through hole 113 are provided on the hole wall surface of the through hole 113, and the plurality of first bosses 1141 are distributed at intervals, and the capillary channels 40 distributed on the hole wall surface of the through hole 113 are formed between adjacent first bosses 1141. That is, vertical capillary channels 40 are formed between adjacent first bosses 1141. Of course, in other embodiments, a groove (not shown) may also be formed on the hole wall surface of the through hole 113, and the groove serves as the vertical capillary channel 40.

[0048] The first bosses 1141 may be spaced and evenly distributed along the circumference of the through hole 113, so that the vertical capillary channels 40 may also be evenly distributed. The cross section of the first end cap 11 may be circular, but is not limited to a circular shape, and may also be other shapes.

[0049] Preferably, the lower end of the capillary channel 40 disposed on the hole wall of the through hole 113 may extend to penetrate the second surface 11b, so that the condensate in the capillary channel 40 directly reaches the second surface 11b and finally enters the liquid storage space 5. Alternatively, the lower end of the capillary channel 40 disposed on the hole wall of the through hole 113 may not penetrate the second surface 11b, but may be spaced a sufficiently small distance from the second surface 11b. The upper end of the capillary channel 40 disposed on the hole wall of the through hole 113 may extend to penetrate the first surface 11a, or may not penetrate the first surface 11a.

[0050] like Figure 8 As shown, since the through hole 113 on the first end cover 11 is also connected to the second air flow channel 42, under the suction force of the user, the condensed liquid on the second air flow channel 42 reaches the through hole 113, the vertical capillary channel 40 and the horizontal capillary channel 40 from bottom to top in sequence, and can also be guided to the liquid storage space 5.

[0051] Furthermore, if Figure 7 In the illustrated embodiment, a plurality of second bosses 1142 are formed on the second surface 11b of the first end cap 11 and are arranged at intervals and protrude in a direction away from the second surface 11b, and the capillary channels 40 distributed on the second surface 11b are formed between two adjacent second bosses 1142. That is, a transverse capillary channel 40 is formed between two adjacent second bosses 1142. Of course, in other embodiments, a groove (not shown) may also be formed on the second surface 11b as the transverse capillary channel 40.

[0052] Similarly, the second bosses 1142 may also be spaced and evenly distributed along the circumference of the first end cover 11 , so that the transverse capillary channels 40 may also be evenly distributed.

[0053] Each first boss 1141 and each second boss 1142 may be an integrated structure formed by injection molding or the like. Alternatively, each first boss 1141 and each second boss 1142 may also be a split structure formed separately and connected together in a one-to-one correspondence. Correspondingly, each vertical capillary channel 40 and each horizontal capillary channel 40 are also connected in a one-to-one correspondence, so that the condensate can be quickly and evenly drained into the liquid storage space 5.

[0054] Furthermore, if Figure 7In the illustrated embodiment, a plurality of third bosses 1143 are also formed on the second surface 11b, and the third bosses 1143 are distributed around the periphery of each second boss 1142. A groove 11c is formed between the third boss 1143 and the second boss 1142, and the groove 11c is connected to the capillary channel 40. Specifically, the groove 11c is connected to the transverse capillary channel 40. The condensate flowing out of the transverse capillary channel 40 can be concentrated in the groove 11c, so that the condensate can be quickly and evenly drained into the liquid storage space 5, for example, absorbed by the liquid storage member 31. Similarly, each third boss 1143 can also be evenly distributed along the circumference of the first end cover 11.

[0055] Furthermore, if Figure 6 In the illustrated embodiment, the through hole 113 includes a first portion 1131 and a second portion 1132 that are interconnected, the cross-sectional area of ​​the first portion 1131 is greater than the cross-sectional area of ​​the second portion 1132, and the first portion 1131 is further away from the liquid storage space 5 relative to the second portion 1132. At least one capillary channel 40 is partially disposed on the hole wall surface of the second portion 1132. That is, at least one vertical capillary channel 40 is formed on the hole wall surface of the second portion 1132. At this time, the upper end of the vertical capillary channel 40 does not penetrate the first surface 11a. In addition, a step 1133 is formed between the first portion 1131 and the second portion 1132.

[0056] Please also read Figure 3 The lower end of the central tube 1022 extends into the first portion 1131 of the through hole 113 on the first end cover 11, and the lower end of the central tube 1022 can directly abut against the step 1133, or can be spaced from the step 1133 by a sufficiently small distance. Thus, the lower end of the central tube 1022 can be as close to or directly contact the vertical capillary channel 40 on the hole wall surface of the second portion 1132 of the through hole 113 as possible, so that the condensate in the first air flow channel 41 can be quickly sucked into the vertical capillary channel 40 and finally flow back into the liquid storage space 5.

[0057] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An atomizer (1), characterized in that: The invention comprises a liquid storage shell (10) and a first end cover (11) arranged in the liquid storage shell (10); a liquid storage space (5) and an air flow channel (4) are formed in the liquid storage shell (10); the first end cover (11) seals one end of the liquid storage space (5); and at least one capillary channel (40) is provided on the first end cover (11), and the at least one capillary channel (40) is respectively connected to the air flow channel (4) and the liquid storage space (5).

2. The atomizer (1) according to claim 1, characterized in that: The air flow channel (4) comprises a first air flow channel (41) and a second air flow channel (42) which are connected to each other; The liquid storage space (5) surrounds the periphery of the second air flow channel (42); The first end cover (11) is arranged between the first air flow channel (41) and the liquid storage space (5), and the at least one capillary channel (40) connects the first air flow channel (41) and the liquid storage space (5).

3. The atomizer (1) according to claim 2, characterized in that: The liquid storage shell (10) comprises a shell (101) and a suction nozzle (102) connected to each other; The second air flow channel (42) and the liquid storage space (5) are formed inside the housing (101); The first air flow channel (41) is formed inside the suction nozzle (102); The first end cover (11) is arranged between the housing (101) and the suction nozzle (102).

4. The atomizer (1) according to claim 1, characterized in that The first end cover (11) comprises a first surface (11a) facing away from the liquid storage space (5), a second surface (11b) facing the liquid storage space (5), and a through hole (113) passing through the first surface (11a) and the second surface (11b); The through hole (113) is connected to the air flow channel (4), and each of the capillary channels (40) is distributed on the hole wall surface of the through hole (113) and the second surface (11b).

5. The atomizer (1) according to claim 4, characterized in that A plurality of first bosses (1141) protruding in a direction close to the central axis of the through hole (113) are arranged at intervals on the wall surface of the through hole (113), and the capillary channels (40) distributed on the wall surface of the through hole (113) are formed between adjacent first bosses (1141).

6. The atomizer (1) according to claim 4, characterized in that A plurality of second bosses (1142) arranged at intervals are formed on the second surface (11b), and the capillary channels (40) distributed on the second surface (11b) are formed between adjacent second bosses (1142).

7. The atomizer (1) according to claim 6, characterized in that A plurality of third bosses (1143) arranged at intervals are also formed on the second surface (11b), and the third bosses (1143) are distributed on the periphery of each of the second bosses (1142), and a groove (11c) connected to the capillary channel (40) is formed between the third bosses (1143) and the second bosses (1142).

8. The atomizer (1) according to claim 4, characterized in that The through hole (113) comprises a first part (1131) and a second part (1132) which are interconnected, the cross-sectional area of ​​the first part (1131) is larger than the cross-sectional area of ​​the second part (1132), and the first part (1131) is farther away from the liquid storage space (5) than the second part (1132); At least one portion of the capillary channel (40) is disposed on the pore wall surface of the second portion (1132).

9. The atomizer (1) according to claim 1, characterized in that The atomizer (1) further comprises a liquid storage component (31) arranged in the liquid storage space (5), and the first end cover (11) is in contact with the liquid storage component (31); Alternatively, the atomizer (1) further comprises a liquid storage component (31) arranged in the liquid storage space (5), and the first end cover (11) is spaced apart from the liquid storage component (31); and / or, at least one of the capillary channels (40) is a capillary groove; And / or, at least one of the capillary channels (40) has a width of 0.3 mm to 1 mm.

10. An electronic atomization device, characterized in that: It comprises the atomizer (1) according to any one of claims 1 to 9, and a power supply device (2) connected to the atomizer (1).

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