Electronic atomization device

Abstract

The present invention discloses an electronic atomization device, comprising: a mouthpiece, an airflow sensor and a start channel, wherein one end of the start channel leads to the mouthpiece, and the other end leads to the airflow sensor, and a liquid absorbing part is provided at a section of the start channel close to the airflow sensor, and the liquid absorbing part is used to absorb liquid flowing through the start channel through capillary force. By providing a liquid absorbing part at a section of the start channel close to the airflow sensor to absorb liquid leaking into the start channel, the leaking liquid is prevented from soaking the airflow sensor, and the airflow sensor is prevented from failing, while ensuring the smoothness of the start channel.

Description

Technical Field

[0001] The present invention relates to the technical field of atomizers, and in particular to an electronic atomization device. Background Art

[0002] The electronic atomization device includes an atomization component and a power supply component, and an annular silicone is provided between the atomization component and the power supply component for sealing. During the use of the electronic atomization device, condensation will be generated; due to improper operation or other reasons, leakage will occur. The leakage path includes the starting channel and the sealing part sealed with annular silicone. When the seal of the annular silicone fails, the atomizer will leak into the battery, causing the microphone and circuit board to fail. Usually, the electronic atomization device uses a microphone for startup, and the failure of the microphone affects the use of the electronic atomization device. Summary of the invention

[0003] In view of this, the present invention provides an electronic atomization device to solve the problem in the prior art that liquid leakage causes the airflow sensor to fail and the leaked liquid is retained in the starting channel.

[0004] In order to solve the above technical problems, the first technical solution provided by the present invention is: to provide an electronic atomization device, including a nozzle, an airflow sensor and a starting channel, one end of the starting channel is connected to the nozzle, and the other end is connected to the airflow sensor, and a section of the starting channel close to the airflow sensor is provided with a liquid absorption part, and the liquid absorption part is used to attract liquid flowing through the starting channel through capillary force.

[0005] Wherein, the liquid absorption part includes a capillary drainage structure, and the capillary drainage structure includes at least one capillary groove, and the capillary groove is used to absorb the liquid flowing through the starting channel.

[0006] Wherein, there are multiple capillary grooves, and the multiple capillary grooves are arranged side by side.

[0007] Wherein, the liquid absorption part includes a capillary drainage structure and a porous liquid storage element, and the capillary drainage structure is used to attract the liquid flowing through the starting channel to the porous liquid storage element.

[0008] Wherein, the capillary drainage structure is a structure composed of a plurality of capillary grooves arranged side by side.

[0009] Wherein, the porous liquid storage element is liquid storage cotton or porous ceramic.

[0010] The capillary force of the capillary groove far from the airflow sensor is greater than the capillary force of the capillary groove close to the airflow sensor.

[0011] Wherein, the capillary drainage structure includes a plurality of first fins, and the plurality of first fins are spaced apart and arranged in parallel to form first capillary grooves.

[0012] Wherein, the starting channel includes a first section of the airway and a second section of the airway; one end of the first section of the airway is connected to the airflow sensor, the other end of the first section of the airway is connected to one end of the second section of the airway, and the other end of the second section of the airway is connected to the suction nozzle; the distance between one end of the plurality of first ribs close to the first section of the airway and the central axis of the first section of the airway is equal and is 0.9-1.5mm.

[0013] Among them, the area corresponding to the first section of the air duct is the first area, and the area corresponding to the second section of the air duct is the second area; the distance between the end of the first rib arranged in the first area close to the first section of the air duct and the central axis of the first section of the air duct is the first distance, and the distance between the end of the first rib arranged in the second area close to the first air duct and the central axis of the first section of the air duct is the second distance, and the first distance is greater than the second distance.

[0014] Among them, the multiple second distances of the multiple first ribs arranged in the second area are equal and are 0.3-0.5 mm; the first distances of the multiple first ribs arranged in the first area are equal and are 0.9-1.5 mm.

[0015] Among them, the multiple second distances of the multiple first ribs arranged in the second area form an arithmetic decrease along the direction from away from the first area to close to the first area, and the arithmetic difference is 0.3-0.5mm; the first distances of the multiple first ribs arranged in the first area are equal and are 0.9-1.5mm.

[0016] Among them, the capillary drainage structure also includes a plurality of second fins, and the plurality of second fins are located on a side of the plurality of first fins away from the first section of the airway; the plurality of second fins are spaced apart and arranged in parallel to form second capillary grooves; the first capillary grooves are connected to the second capillary grooves; and a third capillary groove is formed between the plurality of first fins and the plurality of second fins.

[0017] The angle between the extension direction of the first ribs and the second ribs and the extension direction of the first air duct section is 60-90 degrees; the first capillary grooves and the second capillary grooves are arranged in one-to-one correspondence or staggered arrangement.

[0018] Among them, the width of the first rib is 0.6-1.0mm, and the width of the first capillary groove is 0.3-0.5mm; the width of the second rib is 0.6-1.0mm, and the width of the second capillary groove is 0.3-0.5mm; the width of the third capillary groove is 0.3-0.5mm.

[0019] Wherein, the material of the first fin and the second fin is metal or porous ceramic.

[0020] Wherein, the electronic atomization device also includes an air inlet and an atomization channel, the atomization channel connects the air inlet and the mouthpiece, the atomization channel is provided with an atomization core, and the atomization channel is fluidically connected to the starting channel.

[0021] Wherein, the electronic atomization device includes a liquid storage tank, the atomization channel includes an atomization cavity, the atomization core is arranged in the atomization cavity, the atomization core is used to atomize the liquid from the liquid storage tank, and the liquid absorption part is arranged between the atomization core and the airflow sensor.

[0022] Beneficial effects of the present invention: Different from the prior art, the present invention provides a liquid absorption part in the starting channel, which absorbs the liquid flowing through the starting channel through capillary force, thereby preventing leakage from soaking the airflow sensor, avoiding failure of the airflow sensor, and ensuring the smoothness of the starting channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1a It is a schematic diagram of the structure of the electronic atomization device provided by the present invention;

[0025] Figure 1b is a block diagram of the electronic atomization device provided by the present invention;

[0026] Figure 2 It is a structural schematic diagram of a first embodiment of a starting channel of an electronic atomization device provided by the present invention;

[0027] Figure 3 It is a structural schematic diagram of a second embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0028] Figure 4 It is a structural schematic diagram of a third embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0029] Figure 5 This is an experimental phenomenon diagram of the third embodiment of the start-up channel of the electronic atomization device provided by the present invention;

[0030] Figure 6 It is a structural schematic diagram of a fourth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0031] Figure 7 This is a schematic structural diagram of another implementation of the fourth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0032] Figure 8 This is an experimental phenomenon diagram of another implementation of the fourth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0033] Fig. 9 It is a structural schematic diagram of a fifth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0034] Fig.10 It is a partial schematic diagram of another implementation manner of a plurality of first ribs and a plurality of second ribs in the fifth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0035] Fig.11 yes Fig. 9 The experimental phenomenon diagram of the start-up channel of the electronic atomization device provided;

[0036] Fig.12 It is a structural schematic diagram of an implementation manner of the fifth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0037] Fig.13 yes Fig.12 The experimental phenomenon diagram of the start-up channel of the electronic atomization device provided;

[0038] Fig.14 It is a structural schematic diagram of another implementation manner of the fifth embodiment of the starting channel of the electronic atomization device provided by the present invention;

[0039] Fig.15 yes Fig.14 The experimental phenomenon diagram of the starting channel of the electronic atomization device is provided. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0041] The terms "first", "second" and "third" in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present invention and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products or devices.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] See also Figure 1a and Figure 1b , Figure 1a is a schematic diagram of the structure of the electronic atomization device provided by the present invention, Figure 1b It is a block diagram of the electronic atomization device provided by the present invention.

[0044] The electronic atomization device comprises a starting channel 1, an airflow sensor 2 and a mouthpiece 3. One end of the starting channel 1 leads to the mouthpiece 3, and the other end leads to the airflow sensor 2. A liquid suction part 21 is provided at a section of the starting channel 1 close to the airflow sensor 2. The liquid suction part 21 is used to attract liquid flowing through the starting channel 1 through capillary force. The starting channel 1 connects the mouthpiece 3 and the airflow sensor 2. Negative pressure is generated during suction. The airflow sensor 2 senses the change in air pressure and starts the heating function, so that the electronic atomization device starts to work.

[0045] The electronic atomization device further includes a liquid storage tank 4, an atomization channel 5, an air inlet 6 and a power supply 7. The atomization channel 5 is connected to the air inlet 6 and the suction nozzle 3, and the atomization channel 5 is connected to the starting channel 1. The atomization channel 5 includes an atomization chamber 51, an atomization core 52 is arranged in the atomization chamber 51, and the atomization core 52 is used to atomize the liquid from the liquid storage tank 4. The liquid suction part 21 is arranged between the atomization core 52 and the airflow sensor 2. The power supply 7 is used to supply power to the atomization core 52 so that the atomization core 52 works to atomize the liquid.

[0046] The atomization channel 5 includes an air outlet channel 53, which runs through the liquid storage tank 4, one end of the air outlet channel 53 is connected to the suction nozzle 3, and the other end is connected to the atomization chamber 51; the air inlet 6 is connected to the atomization chamber 51. When inhaling, negative pressure is generated, and the outside air enters the atomization chamber 51 from the air inlet 6. At the same time, the air flow sensor 2 senses the air pressure change and starts the heating function. The outside air carries the liquid atomized by the atomization core 52 through the air outlet channel 53 to the suction nozzle 3, and is inhaled by the user.

[0047] Part of the starting channel 1 is shared with the atomizing chamber 51 and the air outlet channel 53 .

[0048] See also Figure 2 , is a schematic structural diagram of a first embodiment of a starting channel 1 of an electronic atomization device provided by the present invention.

[0049] The start-up channel 1 includes a first airway 11, a second airway 12 and a liquid-absorbing element accommodating chamber 13; one end of the first airway 11 is connected to the airflow sensor 2, the other end of the first airway 11 is connected to one end of the second airway 12, and the other end of the second airway 12 is connected to the suction nozzle 3; the extension direction of the first airway 11 is perpendicular to that of the second airway 12. The liquid-absorbing element accommodating chamber 13 is connected to the first airway 11. Among them, the first airway 11 is connected to one end of the airflow sensor 2 and is also connected to the outside.

[0050] Since the fluid of the start channel 1 is in fluid communication with the atomization channel 5, the condensate after the atomization gas of the atomization channel 5 condenses will enter the start channel 1. When the electronic atomization device leaks, the leaked liquid will also enter the start channel 1. The leaked liquid and condensate entering the start channel 1 will contaminate the airflow sensor 2 and affect the smoothness of the start channel 1.

[0051] A through hole 111 is provided on the side wall of one end of the first air passage 11 for connecting to the outside world, and is used as an interface for connecting to the airflow sensor 2. The shape and size of the through hole 111 are not limited, and can be designed according to the size of the airflow sensor 2. A microphone is usually selected as the airflow sensor 2, and other components can also be selected as the airflow sensor 2, as long as the function of starting the electronic atomization device can be realized, and this application does not limit this.

[0052] In the first embodiment, a liquid absorption part 21 is provided in the liquid absorption element accommodating cavity 13, and the liquid absorption part 21 includes a porous liquid storage element 211. The porous liquid storage element 211 is arranged in the entire space of the liquid absorption element accommodating cavity 13. The porous liquid storage element 211 is liquid storage cotton or porous ceramic. The liquid diffuses in the porous liquid storage element 211 along the direction from close to the second section of the airway 12 to away from the second section of the airway 12. During use, the porous liquid storage element 211 can be replaced after the porous liquid storage element 211 is full of liquid or the liquid absorption speed slows down, which can avoid liquid retention in the starting channel 1 as much as possible, thereby avoiding liquid soaking the airflow sensor 2, and improving the performance of the electronic atomization device.

[0053] It can be understood that the porous liquid storage element 211 can fill part of or the entire liquid absorption element accommodating chamber 13; even after the porous liquid storage element 211 fills the entire liquid absorption element accommodating chamber 13, the porous liquid storage element 211 is also arranged in part of the first section of the air channel 11, so that the porous liquid storage element 211 has the maximum liquid absorption capacity. When the liquid absorption part 21 includes a material that expands after absorbing liquid, the material only fills part of the liquid absorption element accommodating chamber 13.

[0054] It can be understood that the extension direction of the first section of the airway 11 and the second section of the airway 12 may not be perpendicular, as long as a certain angle can meet the needs. The second section of the airway 12 is a closed tubular structure. The first section of the airway 11 is also a tubular structure, but the side wall connecting the first section of the airway 11 and the liquid absorption element accommodating chamber 13 has an opening, so that the liquid absorption element accommodating chamber 13 is connected to the first section of the airway 11.

[0055] See also Figure 3 , is a structural schematic diagram of a second embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0056] In the second embodiment, the liquid suction part 21 includes a capillary drainage structure 212. The capillary drainage structure 212 includes a plurality of first ribs 2121, and the plurality of first ribs 2121 are arranged in parallel to form first capillary grooves 2122; that is, the number of the first capillary grooves 2122 is multiple, and the first capillary grooves 2122 are arranged side by side. It can be understood that the capillary drainage structure 212 includes at least two first ribs 2121, that is, at least one first capillary groove 2122 is formed. The first capillary groove 2122 is used to attract and store the liquid flowing through the start channel 1, keep the start channel 1 unobstructed, and prevent the liquid from soaking the airflow sensor 2.

[0057] The width of the first ribs 2121 is 0.6-1.0 mm, and the width of the first capillary grooves 2122 is 0.3-0.5 mm. The angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is greater than 30 degrees, preferably 60-90 degrees, so that the liquid can be smoothly sucked through the first capillary grooves 2122. In this embodiment, the angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is 90 degrees.

[0058] In this embodiment, the distances between the ends of the multiple first ribs 2121 close to the first airway 11 and the central axis of the first airway 11 are equal and are 0.9-1.5 mm. The distances between the ends of the multiple first ribs 2121 far from the first airway 11 and the central axis of the first airway 11 can be equal or unequal.

[0059] In other embodiments, the liquid absorption element accommodating cavity 13 includes a first area 221 corresponding to the first section of the air duct 11 and a second area 222 corresponding to the second section of the air duct 12; the distance between the end of the first rib 2121 arranged in the first area 221 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 is a first distance L1, and the distance between the end of the first rib 2121 arranged in the second area 222 close to the first air duct 11 and the central axis of the first section of the air duct 11 is a second distance L2, and the first distance L1 is greater than the second distance L2.

[0060] Specifically, the second distances L2 of the first ribs 2121 in the second region 222 may be equal to each other and range from 0.3 to 0.5 mm; the first distances L1 of the first ribs 2121 in the first region 221 may be equal to each other and range from 0.9 to 1.5 mm.

[0061] In another embodiment, the multiple second distances L2 of the multiple first ribs 2121 arranged in the second area 222 may be unequal, and may decrease arithmetically from the direction away from the first area 221 to the direction close to the first area 221, with the arithmetically decreasing distance being 0.3-0.5 mm; the multiple first distances L1 of the multiple first ribs 2121 arranged in the first area 221 may be equal and be 0.9-1.5 mm.

[0062] See also Figure 4 , is a structural schematic diagram of a third embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0063] The structure of the starting component of the third embodiment of the present invention is basically the same as that of the electronic atomization device of the second embodiment of the present invention, except that the liquid absorption part 21 includes a porous liquid storage element 211 and a capillary drainage structure 212. The capillary drainage structure 212 includes a plurality of first ribs 2121. Specifically, the liquid absorption element accommodating chamber 13 includes a first space 22 close to the first section of the airway 11 and a second space 23 away from the first section of the airway 12. A plurality of first ribs 2121 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23, that is, a plurality of first ribs 2121 are arranged between the porous liquid storage element 211 and the first section of the airway 11. A plurality of first ribs 2121 are arranged in parallel with each other to form a first capillary groove 2122. The width of the plurality of first ribs 2121 is 0.6-1.0 mm, and the width of the first capillary groove 2122 is 0.3-0.5 mm. The angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is greater than 30 degrees, preferably 60-90 degrees, so that the liquid can smoothly flow into the second space 23 through the first capillary grooves 2122. In this embodiment, the angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is 90 degrees.

[0064] In this embodiment, the distances between the ends of the multiple first ribs 2121 close to the first air passage 11 and the central axis of the first air passage 11 are equal and are 0.9-1.5 mm. The distances between the ends of the multiple first ribs 2121 away from the first air passage 11 and the central axis of the first air passage 11 can be equal or unequal; it is only necessary that the ends of the multiple first ribs 2121 away from the first air passage 11 are in contact with the porous liquid storage element 211.

[0065] The first capillary groove 2122 connects the first air passage 11 and the second space 23, so that the liquid entering the start-up channel 1 can flow into the second space 23 through the first capillary groove 2122 and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the start-up channel 1 unobstructed and preventing the liquid from soaking the airflow sensor 2. The liquid diffuses on the porous liquid storage element 211 in a direction from close to the second air passage 12 to far away from the second air passage 12.

[0066] By arranging a plurality of first fins 2121 in the liquid absorption element accommodating cavity 13, the liquid flowing into the start channel 1 is guided so that the liquid is absorbed by the porous liquid storage element 211. When the amount of liquid leakage is small, the liquid flowing into the start channel 1 is absorbed by the porous liquid storage element 211 through the guidance of the first capillary grooves 2122 between the plurality of first fins 2121, and does not affect the patency of the start channel 1. When the amount of liquid leakage is large, the liquid flowing into the start channel 1 is first guided to the porous liquid storage element 211 by the plurality of first fins 2121, and when the porous liquid storage element 211 does not have the ability to absorb liquid, the liquid level in the second section of the airway 12 is further raised, so that the through hole 111 connected to the airflow sensor 2 is the last area contacted by the liquid, thereby protecting the airflow sensor 2 to the maximum extent. During use, the porous liquid storage element 211 is replaced when it is full of liquid or the liquid absorption speed slows down, which can avoid liquid retention in the starting channel 1 as much as possible, thereby preventing liquid from soaking the airflow sensor 2 and improving the performance of the electronic atomization device.

[0067] See also Figure 5 , is an experimental phenomenon diagram of the third embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0068] Depend on Figure 5 It can be seen that by providing a plurality of first fins 2121 and a porous liquid storage element 211, the liquid can be guided so that the liquid leaking into the start channel 1 is absorbed by the porous liquid storage element 211, thereby protecting the airflow sensor 2 to the maximum extent and preventing the liquid from being retained in the start channel 1. However, the rising of the lower liquid and the sinking of the upper liquid in the first capillary groove 2122 will form an air column. In the experiment, the opening side wall of the experimental piece is fitted with an acrylic plate to facilitate the observation of liquid flow.

[0069] See also Figure 6 , is a structural schematic diagram of a fourth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0070] The starting component of the fourth embodiment of the present invention is basically the same in structure as the electronic atomization device of the third embodiment of the present invention, the difference being that the structures of the multiple first ribs 2121 are different. Specifically, in the fourth embodiment, the liquid absorption portion 21 includes a porous liquid storage element 211 and multiple first ribs 2121. The liquid absorption element accommodating chamber 13 includes a first space 22 close to the first section of the air duct 11 and a second space 23 away from the first section of the air duct 12. Multiple first ribs 2121 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23. Multiple first ribs 2121 are spaced apart and arranged in parallel to form first capillary grooves 2122. The width of the multiple first ribs 2121 is 0.6-1.0 mm, and the width of the first capillary grooves 2122 is 0.3-0.5 mm.

[0071] The first capillary groove 2122 connects the first air channel 11 and the second space 23, so that the liquid entering the starting channel 1 can flow into the second space 23 through the first capillary groove 2122 and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the starting channel 1 unobstructed and preventing the liquid from soaking the airflow sensor 2.

[0072] In this embodiment, the liquid absorption element accommodating cavity 13 includes a first area 221 corresponding to the first section of the air duct 11 and a second area 222 corresponding to the second section of the air duct 12; the distance between the end of the first rib 2121 arranged in the first area 221 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 is defined as a first distance L1, and the distance between the end of the first rib 2121 arranged in the second area 222 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 is defined as a second distance L2, and the first distance L1 is greater than the second distance L2, that is, the height of the first rib 2121 arranged in the second area 222 is greater than the height of the first rib 2121 arranged in the first area 221.

[0073] In a specific embodiment, the second distances L2 of the plurality of first ribs 2121 disposed in the second region 222 are equal and are 0.3-0.5 mm; the first distances L1 of the plurality of first ribs 2121 disposed in the first region 221 are equal and are 0.9-1.5 mm. The distances between the ends of the plurality of first ribs 2121 away from the first section of the airway 11 and the central axis of the first section of the airway 11 may be equal or unequal; it is only necessary that the ends of the plurality of first ribs 2121 away from the first section of the airway 11 are in contact with the porous liquid storage element 211.

[0074] See also Figure 7 , is a schematic structural diagram of another implementation scheme of the fourth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0075] In another embodiment, the multiple second distances L2 of the multiple first ribs 2121 disposed in the second region 222 form an arithmetic decrease along the direction from far away from the first region 221 to close to the first region 221, and the arithmetic difference is 0.3-0.5mm; the multiple first distances L1 of the multiple first ribs 2121 disposed in the first region 221 are equal and are 0.9-1.5mm. The distances from the ends of the multiple first ribs 2121 away from the first section of the airway 11 to the central axis of the first section of the airway 11 can be equal or unequal; it is only necessary that the ends of the multiple first ribs 2121 away from the first section of the airway 11 are in contact with the porous liquid storage element 211.

[0076] See also Figure 8 , is an experimental phenomenon diagram of another implementation of the fourth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0077] Depend on Figure 8 It can be seen that the second distances L2 of the first ribs 2121 in the second region 222 form an arithmetic decrease along the direction from far away from the first region 221 to close to the first region 221, and the porous liquid storage element 211 occupies 1 / 2 of the volume of the liquid absorption element accommodating cavity 13, which can promote the liquid and increase the liquid storage volume, and protect the airflow sensor 2 to the maximum extent and keep the start channel 1 unobstructed. In the experiment, the opening side wall of the experimental piece is attached to the acrylic plate to facilitate the observation of liquid flow.

[0078] The angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is 60-90 degrees, so that the liquid can smoothly flow into the second space 23 through the first capillary grooves 2122. Preferably, the angle between the extension direction of the first ribs 2121 and the extension direction of the first air channel 11 is 90 degrees.

[0079] By arranging a plurality of first fins 2121 in the liquid absorption element accommodating chamber 13, the liquid flowing into the starting channel 1 is diverted so that the liquid is absorbed by the porous liquid storage element 211. The liquid absorption element accommodating chamber 13 is divided into a first area 221 corresponding to the first section of the air channel 11, and a second area 222 corresponding to the second section of the air channel 12. By setting the first distance L1 to be greater than the second distance L2, the liquid entering the starting channel 1 through the interface connected to the atomization channel 5 through the second section of the air channel 12 can enter the first capillary groove 2122 more smoothly. In order to avoid the formation of capillary action between the plurality of first fins 2121 in the second area 222, which affects the liquid from entering the first capillary groove 2122 formed by the plurality of first fins 2121 in the first area 221, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second area 222 can be formed into an arithmetic decrease along the direction from away from the first area 221 to close to the first area 221. The liquid diffuses on the porous liquid storage element 211 along a direction from away from the first region 221 to close to the first region 221 .

[0080] When the amount of liquid leakage is small, the liquid flowing into the start channel 1 is absorbed by the porous liquid storage element 211 through the diversion of the multiple first ribs 2121, and does not affect the patency of the start channel 1. When the amount of liquid leakage is large, the liquid flowing into the start channel 1 is first diverted to the porous liquid storage element 211 by the multiple first ribs 2121. When the porous liquid storage element 211 does not have the ability to absorb liquid, the liquid level in the second section of the airway 12 is further raised, so that the through hole 111 connected to the airflow sensor 2 is the last area contacted by the liquid, thereby protecting the airflow sensor 2 to the maximum extent. During use, the porous liquid storage element 211 is replaced after it is full of liquid or the liquid absorption speed slows down, which can avoid liquid retention in the start channel 1 as much as possible, thereby avoiding liquid soaking the airflow sensor 2, and improving the performance of the electronic atomization device.

[0081] In the third and fourth embodiments, the second space 23 occupies at least 1 / 2 of the volume of the liquid absorption element accommodating chamber 13; in other embodiments, the second space 23 occupies 1 / 3 of the volume of the liquid absorption element accommodating chamber 13. The more porous liquid storage elements 211 are arranged in the liquid absorption element accommodating chamber 13, the greater the liquid absorption and storage capacity. Setting the second space 23 to occupy at least 1 / 2 of the volume of the liquid absorption element accommodating chamber 13 can take into account both promoting liquid delivery and increasing the amount of liquid storage, maximally protecting the airflow sensor 2 and keeping the start channel 1 unobstructed.

[0082] See also Fig. 9 , is a structural schematic diagram of the fifth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention.

[0083] The starting assembly of the fifth embodiment of the present invention has a substantially similar structure to the starting assembly of the third embodiment of the present invention, except that the liquid absorbing portion 21 includes a porous liquid storage element 211, a plurality of first fins 2121, and a plurality of second fins 2123. Specifically, the plurality of first fins 2121 and the plurality of second fins 2123 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23. The second space 23 occupies 1 / 3 of the volume of the liquid absorbing element accommodating chamber 13. The plurality of second fins 2123 are located between the plurality of first fins 2121 and the second space 23; the plurality of first fins 2121 are arranged in parallel with each other to form a first capillary groove 2122; the plurality of second fins 2123 are arranged in parallel with each other to form a second capillary groove 2124; the first capillary groove 2122 is connected to the second capillary groove 2124; and the third capillary groove 2125 is formed between the plurality of first fins 2121 and the plurality of second fins 2124. The extension direction of the first capillary groove 2122 is the same as the extension direction of the second capillary groove 2124, and the extension direction of the third capillary groove 2125 is perpendicular to the extension direction of the second capillary groove 2124. The plurality of first ribs 2121 and the plurality of second ribs 2123 can be arranged one by one or staggered (see Fig.10, which is a partial schematic diagram of another implementation of the multiple first ribs 2121 and the multiple second ribs 2124 in the fifth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention), it is only necessary for the first capillary groove 2122 to be connected with the second capillary groove 2124.

[0084] The width of the first rib 2121 is 0.6-1.0 mm, and the width of the first capillary groove 2122 is 0.3-0.5 mm; the width of the second rib 2123 is 0.6-1.0 mm, and the width of the second capillary groove 2124 is 0.3-0.5 mm; and the width of the third capillary groove 2125 is 0.3-0.5 mm.

[0085] The first capillary groove 2122 and the second capillary groove 2124 connect the first section of the airway 11 and the second space 23, so that the liquid entering the starting channel 1 can flow into the second space 23 through the first capillary groove 2122 and the second capillary groove 2124, and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the starting channel 1 unobstructed and preventing the liquid from soaking the airflow sensor 2.

[0086] In this embodiment, the distances between one end of the plurality of first fins 2121 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 are equal and are 0.9-1.5 mm. The distances between one end of the plurality of first fins 2121 away from the first section of the air duct 11 and the central axis of the first section of the air duct 11 are equal. The distances between one end of the plurality of second fins 2123 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 are equal. The distances between one end of the plurality of second fins 2123 away from the first section of the air duct 11 and the central axis of the first section of the air duct 11 may be equal or unequal; it is sufficient that one end of the plurality of second fins 2123 away from the first section of the air duct 11 is in contact with the porous liquid storage element 211.

[0087] See also Fig.11 ,yes Fig. 9 The experimental phenomenon diagram of the startup channel 1 of the electronic atomization device is provided.

[0088] In this experiment, the plurality of first ribs 2121 and the plurality of second ribs 2123 are arranged in one-to-one correspondence, and the third capillary grooves 2125 are formed between the plurality of first ribs 2121 and the plurality of second ribs 2123, which can prevent the formation of air columns in the first capillary grooves 2122 or the second capillary grooves 2124. By arranging the plurality of first ribs 2121, the plurality of second ribs 2123 and the porous liquid storage element 211, the airflow sensor 2 is protected and the start channel 1 is kept unobstructed. In the experiment, the opening side wall of the experimental piece is fitted with the acrylic plate to facilitate the observation of liquid flow.

[0089] In other embodiments, the liquid absorption element accommodating cavity 13 includes a first area 221 corresponding to the first section of the air duct 11 and a second area 222 corresponding to the second section of the air duct 12; the distance between the end of the first rib 2121 arranged in the first area 221 close to the first section of the air duct 11 and the central axis of the first section of the air duct 11 is a first distance L1, and the distance between the end of the first rib 2121 arranged in the second area 222 close to the first air duct 11 and the central axis of the first section of the air duct 11 is a second distance L2, and the first distance L1 is greater than the second distance L2.

[0090] See also Fig.12 , is a structural schematic diagram of an implementation manner of the fifth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention. Fig.12 In the embodiment, the second distances L2 of the first ribs 2121 in the second region 222 may be equal and range from 0.3 to 0.5 mm; the first distances L1 of the first ribs 2121 in the first region 221 may be equal and range from 0.9 to 1.5 mm.

[0091] See also Fig.13 ,yes Fig.12 The experimental phenomenon diagram of the startup channel 1 of the electronic atomization device is provided.

[0092] In this experiment, the multiple second distances L2 of the multiple first ribs 2121 arranged in the second area 222 are equal, and the multiple first distances L1 of the multiple first ribs 2121 arranged in the first area 221 are equal, so that the first ribs between the first area 221 and the second area 222 form a gradient, so that the liquid can more smoothly enter the first capillary groove 2122 and the second capillary groove 2124 in the first area 221. By providing multiple first ribs 2121, multiple second ribs 2123 and porous liquid storage elements 211, the airflow sensor 2 is protected and the start channel 1 is kept unobstructed. In the experiment, the opening side wall of the experimental piece is fitted with an acrylic plate to facilitate observation of liquid flow.

[0093] See also Fig.14 , is a structural schematic diagram of another implementation manner of the fifth embodiment of the starting channel 1 of the electronic atomization device provided by the present invention. Fig.14 In the figure, the multiple second distances L2 of the multiple first ribs 2121 arranged in the second area 222 may be unequal, and may decrease arithmetically from the direction away from the first area 221 to the direction close to the first area 221, with the arithmetic difference being 0.3-0.5mm; the multiple first distances L1 of the multiple first ribs 2121 arranged in the first area 221 are equal and are 0.9-1.5mm.

[0094] See also Fig.15 ,yes Fig.14The experimental phenomenon diagram of the starting channel 1 of the electronic atomization device is provided.

[0095] In this experiment, the second distances L2 of the plurality of first ribs 2121 disposed in the second region 222 form an arithmetic decrease along the direction from far away from the first region 221 to close to the first region 221, which can avoid the formation of capillary action between the plurality of first ribs 2121 in the second region 222, thereby preventing the liquid from entering the first capillary grooves 2122 and the second capillary grooves 2124 formed by the plurality of first ribs 2121 in the first region 221. In the experiment, the side wall of the opening of the experimental piece was attached to the acrylic plate to facilitate observation of the flow of the liquid.

[0096] In the fifth embodiment, the plurality of first ribs 2121 and the plurality of second ribs 2123 are arranged in one-to-one correspondence. The angle between the extension direction of the plurality of first ribs 2121 and the plurality of second ribs 2123 and the extension direction of the first section of the air channel 11 is 60-90 degrees, so that the liquid can smoothly flow into the second space 23 through the first capillary groove 2122 and the second capillary groove 2124. Preferably, the angle between the extension direction of the plurality of first ribs 2121 and the plurality of second ribs 2123 and the extension direction of the first section of the air channel 11 is 90 degrees.

[0097] By arranging a plurality of first fins 2121 and a plurality of second fins 2123 in the liquid absorption element accommodating chamber 13, the liquid flowing into the starting channel 1 is guided so that the liquid is absorbed by the porous liquid storage element 211. The liquid absorption element accommodating chamber 13 is divided into a first area 221 corresponding to the first section of the air channel 11 and a second area 222 corresponding to the second section of the air channel 12. By setting the first distance L1 to be greater than the second distance L2, the liquid entering the starting channel 1 through the interface connecting the second section of the air channel 12 and the atomization channel 5 can enter the first capillary groove 2122 and the second capillary groove 2124 more smoothly. In order to avoid the formation of capillary action between the multiple first fins 2121 in the second region 222, which affects the liquid from entering the first capillary grooves 2122 and the second capillary grooves 2124 formed by the multiple first fins 2121 in the first region 221, the multiple second distances L2 of the multiple first fins 2121 arranged in the second region 222 can be formed into an arithmetic decrease along the direction from far away from the first region 221 to close to the first region 221. By forming a third capillary groove 2125 between the multiple first fins 2121 and the multiple second fins 2122, it is prevented that the liquid forms an air column in the first capillary groove 2122 or the second capillary groove 2124, which affects the liquid from being absorbed by the porous liquid storage element 211. The liquid diffuses on the porous liquid storage element 211 along the direction from far away from the first region 221 to close to the first region 221.

[0098] When the amount of liquid leakage is small, the liquid flowing into the start channel 1 is absorbed by the porous liquid storage element 211 through the guidance of the multiple first ribs 2121 and the multiple second ribs 2123, and does not affect the patency of the start channel 1. When the amount of liquid leakage is large, the liquid flowing into the start channel 1 is first guided to the porous liquid storage element 211 by the multiple first ribs 2121 and the multiple second ribs 2123. When the porous liquid storage element 211 does not have the ability to absorb liquid, the liquid level in the second section of the airway 12 is further raised, so that the through hole 111 connected to the airflow sensor 2 is the last area contacted by the liquid, thereby protecting the airflow sensor 2 to the maximum extent. During use, the porous liquid storage element 211 is replaced after the porous liquid storage element 211 is full of liquid or the liquid absorption speed slows down, which can avoid liquid retention in the start channel 1 as much as possible, thereby avoiding liquid soaking the airflow sensor 2, and improving the performance of the electronic atomization device.

[0099] In the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment, the capillary force of the capillary groove far from the airflow sensor 2 is greater than the capillary force of the capillary groove near the airflow sensor 2, so that more leaked liquid can be stored in a place far from the airflow sensor 2. The capillary drainage structure 212 may include a plurality of first fins 2121 and / or a plurality of second fins 2123, and the material of the plurality of first fins 2121 and the plurality of second fins 2123 is metal or ceramic. When the capillary drainage structure 212 includes porous ceramics, and the porous liquid storage element 211 is porous ceramics, the capillary force of the capillary drainage structure 212 is different from the capillary force of the porous liquid storage element 211.

[0100] The present invention provides a liquid absorption part 21 in the starting channel 1. The liquid absorption part 21 absorbs liquid flowing through the starting channel 1 through capillary force, thereby preventing liquid leakage from soaking the airflow sensor 2 and avoiding failure of the airflow sensor, while ensuring smoothness of the starting channel 1.

[0101] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electronic atomization device, comprising: suction mouth part; Air flow sensor; A starting channel, one end of which leads to the suction nozzle and the other end leads to the airflow sensor, a section of the starting channel close to the airflow sensor is provided with a liquid suction portion, and the liquid suction portion is used to attract liquid flowing through the starting channel by capillary force; The electronic atomization device further comprises an air inlet and an atomization channel, wherein the atomization channel is connected to the air inlet and the mouthpiece, the atomization channel is provided with an atomization core, and the atomization channel is in fluid communication with the start channel; Wherein, the liquid suction part includes a capillary drainage structure, the capillary drainage structure includes a plurality of capillary grooves, the plurality of capillary grooves are arranged side by side, and the capillary grooves are used to attract the liquid flowing through the starting channel; the capillary drainage structure includes a plurality of first fins, the plurality of first fins are spaced and arranged in parallel to form first capillary grooves; the capillary grooves include the first capillary grooves; The starting channel includes a first section of the airway and a second section of the airway; one end of the first section of the airway is connected to the airflow sensor, the other end of the first section of the airway is connected to one end of the second section of the airway, and the other end of the second section of the airway is connected to the suction nozzle; the area corresponding to the first section of the airway is the first area, and the area corresponding to the second section of the airway is the second area; the distance between one end of the first rib arranged in the first area close to the first section of the airway and the central axis of the first section of the airway is a first distance, and the distance between one end of the first rib arranged in the second area close to the first airway and the central axis of the first section of the airway is a second distance, and the first distance is greater than the second distance.

2. The electronic atomization device according to claim 1, characterized in that: The liquid absorption part further comprises a porous liquid storage element, and the capillary drainage structure is used for attracting the liquid flowing through the activation channel to the porous liquid storage element.

3. The electronic atomization device according to claim 2, characterized in that: The porous liquid storage element is liquid storage cotton or porous ceramic.

4. The electronic atomization device according to claim 1, characterized in that: The capillary force of the capillary groove far from the airflow sensor is greater than the capillary force of the capillary groove close to the airflow sensor.

5. The electronic atomization device according to claim 1, characterized in that: The second distances of the first ribs arranged in the second area are equal and are 0.3-0.5 mm; the first distances of the first ribs arranged in the first area are equal and are 0.9-1.5 mm.

6. The electronic atomization device according to claim 1, characterized in that: The multiple second distances of the multiple first ribs arranged in the second area form an arithmetic decrease along the direction from far away from the first area to close to the first area, and the arithmetic difference is 0.3-0.5mm; the first distances of the multiple first ribs arranged in the first area are equal and are 0.9-1.5mm.

7. The electronic atomization device according to claim 1, characterized in that: The capillary drainage structure also includes a plurality of second fins, which are located on a side of the plurality of first fins away from the first section of the airway; the plurality of second fins are spaced apart and arranged in parallel to form second capillary grooves; the first capillary grooves are connected to the second capillary grooves; and a third capillary groove is formed between the plurality of first fins and the plurality of second fins.

8. The electronic atomization device according to claim 7, characterized in that: The angle between the extension direction of the plurality of first ribs and the plurality of second ribs and the extension direction of the first section of the air channel is 60-90 degrees; the plurality of first capillary grooves and the plurality of second capillary grooves are arranged in one-to-one correspondence or staggered arrangement.

9. The electronic atomization device according to claim 7, characterized in that: The width of the first rib is 0.6-1.0 mm, and the width of the first capillary groove is 0.3-0.5 mm; the width of the second rib is 0.6-1.0 mm, and the width of the second capillary groove is 0.3-0.5 mm; the width of the third capillary groove is 0.3-0.5 mm.

10. The electronic atomization device according to claim 7, characterized in that: The first fin and the second fin are made of metal or porous ceramic.

11. The electronic atomization device according to claim 1, characterized in that: The electronic atomization device includes a liquid storage tank, the atomization channel includes an atomization cavity, the atomization core is arranged in the atomization cavity, the atomization core is used to atomize the liquid from the liquid storage tank, and the liquid suction part is arranged between the atomization core and the airflow sensor.

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