Electronic atomization device

Abstract

The utility model relates to an electronic atomization device which comprises a first liquid storage bin, a second liquid storage bin, a first atomization device and a second atomization device. The atomizing core is in fluid communication with the liquid storage part; a second liquid storage bin; the liquid supplementing channel is communicated with the first liquid storage bin and the second liquid storage bin; and the electric control switch assembly is configured to open the liquid supplementing channel when being powered on and close the liquid supplementing channel after being powered off. According to the aerosol generating device, the second liquid storage bin is additionally arranged to supplement liquid for the first liquid storage bin, so that the volume of the liquid storage piece in the first liquid storage bin can be reduced, the actual use efficiency of the aerosol generating matrix is improved, and liquid leakage can be reduced. In addition, a certain distance is kept between the atomizing core and the second liquid storage bin, and the atomizing core and the second liquid storage bin are not in direct fluid communication, so that the possibility that the aerosol-generating matrix in the second liquid storage bin is affected by heat is reduced, and the aerosol-generating matrix in the second liquid storage bin is prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization technical field more specifically, relate to an electronic atomization device. BACKGROUND

[0002] The mainstream electronic atomization device on the market currently has a small liquid storage capacity (usually about 2ml). However, in the process of use, users often ignore the remaining amount of aerosol generating substrate, which can cause the atomization core to overheat and be damaged. To address the above problems, large-capacity electronic atomization devices have appeared on the market, which increase the storage capacity of aerosol generating substrate to reduce or eliminate the need for frequent refilling of aerosol generating substrate. However, with the increase of the capacity of aerosol generating substrate, the risk of liquid leakage also increases significantly.

[0003] In addition, since the atomization core is directly connected to the liquid storage tank, the heat generated during suction will be transferred to the aerosol generating substrate in the liquid storage tank, thereby increasing the temperature of the aerosol generating substrate. The temperature rise can accelerate the evaporation of some components in the aerosol generating substrate, affecting the final taste experience and causing the taste to become weak or change.

[0004] In addition, large-capacity (e.g., > 10ml) electronic atomization devices on the market generally use liquid storage cotton. Due to the storage effect of the liquid storage cotton on the aerosol generating substrate, the utilization rate of the aerosol generating substrate in the liquid storage cotton product is only about 75%, and the remaining 25% is wasted, resulting in low utilization rate of the aerosol generating substrate. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide an improved electronic atomization device in view of the above defects of the prior art.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an electronic atomization device is constructed, which comprises: a first liquid storage tank having a liquid storage member arranged therein; an atomization core in fluid communication with the liquid storage member; a second liquid storage tank; a liquid supplementing channel connecting the first liquid storage tank and the second liquid storage tank; and an electrically controlled switch assembly configured to open the liquid supplementing channel when powered on and close the liquid supplementing channel after power off.

[0007] In some embodiments, the liquid storage space of the first liquid storage tank is smaller than the liquid storage space of the second liquid storage tank.

[0008] In some embodiments, the electronic atomization device comprises a control module, the electrically controlled switch assembly comprises a driving assembly connected to the control module and a valve assembly connected to the driving assembly, and the driving assembly comprises an actuating member made of shape memory material.

[0009] In some embodiments, the actuating member is a spring made of a shape memory alloy,

[0010] The actuating member is elongated after heating by energization to push the valve assembly to move and open the liquid supplement passage.

[0011] In some embodiments, the driving assembly further comprises a first connecting member and a second connecting member,

[0012] The first connecting member is insulatively threaded in the second connecting member and is movable back and forth relative to the second connecting member,

[0013] The actuating member is sleeved on the first connecting member, and both ends of the actuating member are connected with the first connecting member and the second connecting member respectively.

[0014] In some embodiments, the valve assembly comprises a valve connected with the driving assembly and an elastic element connected with the valve,

[0015] The elastic element is configured to provide an elastic restoring force to restore the valve from a state of opening the liquid supplement passage to a state of closing the liquid supplement passage.

[0016] In some embodiments, the control module is configured to supply power to the electrically controlled switch assembly when the accumulated atomization time reaches a preset threshold.

[0017] In some embodiments, the electronic atomization device comprises a housing, and the housing is divided into a first space located at a lower portion and a second space located at an upper portion,

[0018] The first liquid storage compartment, the atomization core and the control module are located in the first space, and the second liquid storage compartment is located in the second space.

[0019] In some embodiments, the electronic atomization device further comprises a battery arranged in the first space.

[0020] In some embodiments, after the liquid supplement passage is opened, the aerosol generating substrate in the second liquid storage compartment can flow to the first liquid storage compartment under the action of gravity.

[0021] The utility model discloses at least has following beneficial effects: the utility model discloses through the second liquid storage bin of adding to supplement the liquid for the first liquid storage bin, can reduce the volume of the liquid storage piece in the first liquid storage bin, thereby improve the actual use efficiency of aerosol generating base material, and can reduce the leakage of liquid, the atomization core and the second liquid storage bin keep a certain distance and two not direct fluid communication, this helps to reduce the possibility that the aerosol generating base material in the second liquid storage bin is affected by heat, and avoids the aerosol generating base material in the second liquid storage bin from being polluted, in addition, the first liquid storage bin and the second liquid storage bin are connected through the electric control switch subassembly, and the liquid supplementing operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below combining with the drawings and examples, and the drawings are as follows:

[0023] Figure 1 It is the three-dimensional structure schematic diagram of electronic atomization device in some examples of the utility model;

[0024] Figure 2 It is Figure 1 The longitudinal section structure schematic diagram of electronic atomization device shown in part structure;

[0025] Figure 3 It is Figure 2 The longitudinal section structure schematic diagram of internal part structure of electronic atomization device shown in part structure;

[0026] Figure 4 It is Figure 3 The exploded structure schematic diagram of part structure shown. DETAILED DESCRIPTION

[0027] In order to have more clear understanding of the technical features, the object and the effect of the utility model, now the specific implementation of the utility model is explained in detail with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description, and the person skilled in the art can make similar improvement without violating the connotation of the utility model, therefore the utility model is not limited by the following disclosed specific examples.

[0028] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "longitudinal", "lateral", "upper", "lower", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings or the orientation or position relation of the product of the utility model when usually placed, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0029] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of the technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0030] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "below" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above" the second feature can be directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below" the second feature can be directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0032] Figure 1 An electronic atomization device 1 in some embodiments of the present application is shown, which is used to accommodate an aerosol generating substrate and heat and atomize the aerosol generating substrate after being powered on. The aerosol generating substrate includes but is not limited to materials used for medical, health, health, beauty, etc.

[0033] The shape of the electronic atomization device 1 is not limited, for example, it can have various shapes such as square column, oval column, track column or cylindrical column, etc. In addition, the heating method of the electronic atomization device 1 is also not limited, for example, it can adopt one or more of resistance heating, electromagnetic heating, infrared heating, chemical heating, etc.

[0034] As Figures 2 to 4As shown, the electronic atomization device 1 comprises a housing 10, and an atomization core 20 and an electrically controlled switch assembly 30 arranged in the housing 10. The housing 10 is formed with a first liquid storage compartment 11, a second liquid storage compartment 12, and a liquid supplement channel 13 communicating the first liquid storage compartment 11 and the second liquid storage compartment 12. The atomization core 20 is in fluid communication with the first liquid storage compartment 11, and can heat and atomize the aerosol generating substrate stored in the first liquid storage compartment 11 after being powered. The electrically controlled switch assembly 30 is at least partially arranged in the liquid supplement channel 13, and is used to open the liquid supplement channel 13 when powered, and close the liquid supplement channel 13 when powered off.

[0035] In addition, the housing 10 is further formed with an airflow channel 18, which comprises an air inlet hole 1820 and an air inlet 1810. The air inlet 1810 is usually located at one end (the upper end in the figure) of the housing 10. The air inlet hole 1820 can be arranged at any position of the housing 10, for example, on the bottom wall or the side wall of the housing 10. The atomization core 20 is in air communication with the airflow channel 18. When a user inhales at the air inlet 1810, external air enters through the air inlet hole 1820, flows through the atomization core 20, and carries the aerosol formed by atomization of the atomization core 20 out of the air inlet 1810 through the airflow channel 18, for the user to inhale.

[0036] Further, the electronic atomization device 1 can further comprise a battery 40 and a control module arranged in the housing 10. The atomization core 20 and the battery 40 are electrically connected to the control module. The control module can control the battery 40 to supply power or cut off power to the atomization core 20, and can also control the power of the battery 40 supplied to the atomization core 20, etc. In addition, the control module is also electrically connected to the electrically controlled switch assembly 30, and the control module can control the battery 40 to supply power or cut off power to the electrically controlled switch assembly 30.

[0037] In some embodiments, the electronic atomization device 1 can further comprise an airflow sensing piece 50 arranged in the housing 10, which is electrically connected to the control module and in air communication with the airflow channel 18. When a user starts to inhale, the airflow sensing piece 50 senses the change of air pressure and starts the battery 40 to supply power to the atomization core 20 through the control module, to atomize the aerosol generating substrate in the first liquid storage compartment 11.

[0038] The liquid storage space of the second liquid storage compartment 12 is greater than that of the first liquid storage compartment 11, or the liquid storage amount of the second liquid storage compartment 12 is greater than that of the first liquid storage compartment 11, for example, the liquid storage amount of the first liquid storage compartment 11 is about 2 milliliters, and the liquid storage amount of the second liquid storage compartment 12 is about 10 milliliters. Of course, in other embodiments, the liquid storage space (amount) of the second liquid storage compartment 12 can also be less than or equal to that of the first liquid storage compartment 11.

[0039] In some embodiments, the second liquid storage 12 can be a liquid storage cavity, and the liquid storage is performed by injecting the aerosol generating substrate into the liquid storage cavity. Such a structure is beneficial for storing more aerosol generating substrate. Of course, in other embodiments, the second liquid storage 12 can also be provided with a liquid storage member, and the liquid storage can be performed by capillary force or other forces.

[0040] In some embodiments, at least part of the cavity wall of the second liquid storage 12 is transparent, so as to facilitate the user to observe the liquid amount in the second liquid storage 12. Of course, in other embodiments, the cavity wall of the second liquid storage 12 can also be non-transparent.

[0041] In some embodiments, the second liquid storage 12 is a liquid injectable structure, for example, a liquid injection hole is provided on the cavity wall of the second liquid storage 12, so that the second liquid storage 12 can be injected with liquid after the aerosol generating substrate in the second liquid storage 12 is consumed and continue to be used; or the second liquid storage 12 adopts a detachable and replaceable module structure, and the second liquid storage 12 can continue to be used by replacing a new second liquid storage 12. Of course, the second liquid storage 12 can also adopt a non-injectable / non-detachable structure, and the whole machine is replaced after the aerosol generating substrate in the electronic atomization device 1 is used up.

[0042] In some embodiments, the first liquid storage 11 can be provided with a liquid storage member 111, and the liquid storage can be performed by capillary force or other forces. Of course, in other embodiments, the first liquid storage 11 can also be a liquid storage cavity, and the liquid storage is performed by injecting the aerosol generating substrate into the liquid storage cavity.

[0043] In some embodiments, the liquid storage member 111 is made of a porous material with capillary force, for example, the liquid storage member 111 is liquid storage cotton (including natural cotton and / or artificial cotton and other cotton materials), so that the liquid in the first liquid storage 11 can be effectively prevented from leaking even in the case of temperature and pressure changes. Of course, in other embodiments, the liquid storage member 111 can also be made of inorganic porous materials (such as ceramics, glass fibers, etc.).

[0044] In some embodiments, the liquid storage member 111 in the first liquid storage 11 can be pre-filled with the aerosol generating substrate during the production stage, so as to ensure that the user can use it immediately after purchase. Of course, in other embodiments, the liquid storage member 111 in the first liquid storage 11 can not be filled with the aerosol generating substrate during the production stage, which can avoid liquid leakage during packaging, transportation, etc.

[0045] Due to the small storage space of the first liquid storage bin 11 and the small volume of the liquid storage member 111, the actual use efficiency of the aerosol generating substrate can be significantly improved compared to the traditional full liquid storage cotton design, and the utilization rate of the aerosol generating substrate can reach 95%. Due to the storage function of the liquid storage member 111, liquid leakage caused during packaging, transportation and the like can be reduced.

[0046] In addition, the atomization core 20 is not in direct fluid communication with the second liquid storage bin 12 and is kept at a distance, which helps to reduce the possibility of the aerosol generating substrate in the second liquid storage bin 12 being affected by heat and avoid the aerosol generating substrate in the second liquid storage bin 12 being contaminated, thereby improving the preservation effect of the aerosol generating substrate and reducing the attenuation of the taste.

[0047] The atomization core 20 is arranged in the first liquid storage bin 11, which can include a liquid absorbing body 21 in fluid communication with the first liquid storage bin 11 and a heating body 22 in contact with the liquid absorbing body 21. The liquid absorbing body 21 can absorb the aerosol generating substrate from the first liquid storage bin 11 and deliver it to the heating body 22.

[0048] The liquid absorbing body 21 can adopt any structure capable of transporting or conveying the aerosol generating substrate to the heating body 22, and generally, the liquid absorbing body 21 can guide the liquid by capillary force. In some embodiments, the liquid absorbing body 21 can adopt a porous material with capillary force, including but not limited to cotton materials (such as natural cotton and / or artificial cotton) or inorganic porous materials (such as ceramics, glass fibers, etc.).

[0049] When the first liquid storage bin 11 is provided with the liquid storage member 111, the liquid storage member 111 can be wrapped outside the atomization core 20. The liquid absorbing capacity of the liquid absorbing body 21 is greater than that of the liquid storage member 111, or in other words, the capillary force of the liquid absorbing body 21 is greater than that of the liquid storage member 111, and the aerosol generating substrate can be better guided from the liquid storage member 111 with low liquid absorbing capacity to the liquid absorbing body 21 with high liquid absorbing capacity and delivered to the heating body 22.

[0050] The atomization core 20 can be generally in the shape of a cylinder (such as a circular cylinder) with both ends penetrating. The liquid absorbing body 21 is in the shape of a cylinder, and a gas flow through hole 210 is formed inside the liquid absorbing body 21, and the heating body 22 can be arranged on the inner wall surface of the liquid absorbing body 21. The liquid storage member 111 is wrapped outside the liquid absorbing body 21 and is in fluid communication with the liquid absorbing body 21. The gas flow passage 18 includes an air outlet passage 181, and the atomization core 20 can be coaxially arranged with the air outlet passage 181, and the gas flow through hole 210 is in communication with the lower end of the air outlet passage 181.

[0051] In some embodiments, the electronic atomization device 1 can further include a support tube 23 sleeved outside the atomization core 20 for supporting and fixing the atomization core 20. The liquid storage member 111 is provided with a mounting hole 1111 formed therethrough, and the support tube 23 is longitudinally arranged in the mounting hole 1111. The side wall of the support tube 23 is further provided with at least one liquid inlet 230 for fluid communication between the liquid storage member 111 and the liquid absorbing body 21.

[0052] Of course, in other embodiments, the atomization core 20 can also adopt any known atomization assembly structure. For example, the liquid absorbing body 21 is a bowl-shaped liquid absorbing body, and the heating body 22 is arranged on one side surface of the bowl-shaped liquid absorbing body. Alternatively, the liquid absorbing body 21 is a rod-shaped liquid absorbing body arranged in a transverse or vertical direction, and the heating body 22 is arranged on the outer surface of the rod-shaped liquid absorbing body 21 by winding or printing.

[0053] In some embodiments, the shell 10 can include an outer shell 14 and a support 15 arranged in the outer shell 14. The support 15 divides the inner space of the outer shell 14 into a first space 1410 located at the lower part and a second space 1420 located at the upper part. The second liquid storage compartment 12 is located in the second space 1420. The first liquid storage compartment 11, the atomization core 20, the battery 40, the airflow sensing member 50, and at least part of the electric control switch assembly 30 are located in the first space 1410. The control module includes a circuit board which can be accommodated in the first space 1410 for circuit connection with the atomization core 20, the battery 40, the airflow sensing member 50, and the electric control switch assembly 30.

[0054] In some embodiments, the atomization core 20 and the second liquid storage compartment 12 are arranged non-coaxially. The electronic atomization device 1 has opposite first and second sides in the transverse direction. The first liquid storage compartment 11 can be located in the first space 1410 and arranged close to the first side, and the second liquid storage compartment 12 can be located in the second space 1420 and arranged close to the second side. The atomization core 20 is located in the first liquid storage compartment 11 and arranged close to the first side. In this way, a sufficient distance is maintained between the atomization core 20 and the second liquid storage compartment 12, reducing the possibility of the aerosol generating substrate in the second liquid storage compartment 12 being affected by heat.

[0055] The outer shell 14 includes a first outer shell 141 and a second outer shell 142 which are cooperated with each other. The first outer shell 141 and the second outer shell 142 can be cooperated together in a detachable or non-detachable manner such as buckling, threaded connection, magnetic attraction, etc. In some embodiments, the second outer shell 142 can be cooperated with the upper end of the first outer shell 141, and the air outlet passage 181 can be formed by downward extension of the top wall of the second outer shell 142.

[0056] The support 15 can include a partition wall 151 which covers the lower end opening of the second liquid storage compartment 12, and the liquid supplementing passage 13 penetrates through the partition wall 151 to communicate the second liquid storage compartment 12 with the first liquid storage compartment 11.

[0057] In some embodiments, the bracket 15 can further include a ring-shaped side wall 152 extending upwardly from the partition wall 151, which is sealingly embedded in the opening of the second liquid storage chamber 12 to improve the sealing of the first liquid storage chamber 11 and prevent liquid leakage. In addition, a sealing member 17 can be sleeved between the ring-shaped side wall 152 and the cavity wall of the second liquid storage chamber 12, which can be made of elastic sealing materials such as silica gel to further improve the sealing effect.

[0058] In some embodiments, the bracket 15 can further include a liquid injection pipe 153 extending downwardly from the partition wall 151, and the liquid supplement channel 13 penetrates through the partition wall 151 and the liquid injection pipe 153. The lower end surface of the liquid injection pipe 153 can be used to limit the upper end surface of the liquid storage member 111, and a certain distance between the liquid storage member 111 and the second liquid storage chamber 12 can be achieved. Of course, in other embodiments, the bracket 15 can not include the liquid injection pipe 153.

[0059] In some embodiments, the bracket 15 can further include a liquid storage shell 154 extending downwardly from the partition wall 151, which is a cylinder with an open lower end and defines at least part of the first liquid storage chamber 11.

[0060] In some embodiments, the shell 10 can further include a support member 16 arranged in the outer shell 14. The support member 16 covers the lower end opening of the liquid storage shell 154, thereby defining the first liquid storage chamber 11 together with the liquid storage shell 154. The support member 16 and the liquid storage shell 154 can be fixed to each other by clamping, and of course, in other embodiments, the support member 16 and the liquid storage shell 154 can be fixed to each other by other arbitrary known ways.

[0061] In some embodiments, a liquid storage groove 161 is recessed on the cavity bottom wall of the first liquid storage chamber 11, i.e., the top wall of the support member 16. The liquid storage groove 161 can buffer the leaked liquid, and the liquid storage groove 161 is in fluid communication with the liquid storage member 111, so that the liquid storage member 111 can absorb the leaked liquid for reuse, thereby improving the utilization rate of the aerosol generating substrate.

[0062] In some embodiments, the electrically controlled switch assembly 30 includes a driving assembly 31 and a valve assembly 32 connected with the driving assembly 31. The driving assembly 31 is electrically connected with the control module, and is used to drive the valve assembly 32 to move to open the liquid supplement channel 13 after being powered on.

[0063] In some embodiments, the control module can also monitor and accumulate the atomization time (e.g., accumulate the number of puffs), and when the accumulated atomization time reaches a preset threshold value (e.g., when the user accumulates a certain number of puffs), the aerosol generating substrate in the first liquid storage chamber 11 is close to exhaustion, and the control module automatically sends a driving signal to the driving assembly 31 to open the liquid supplement channel 13, thereby achieving automatic liquid supplement.

[0064] In some embodiments, the control module can also automatically stop supplying power to the driving assembly 31 after the replenishment is completed, for example, automatically stop supplying power after a preset time of supplying power to the driving assembly 31.

[0065] The structure of the driving assembly 31 is not limited, for example, it can include an actuator, a linear motor, a rotary motor, a gear mechanism, an electromagnet, etc. In the present embodiment, the driving assembly 31 is an actuator which can be mounted on the support 16. Specifically, the driving assembly 31 includes an actuating member 310 which is electrically connected with the control module and is at least partially made of a shape memory material, for example, a shape memory alloy. When the actuating member 310 changes in temperature after being heated, the length of the actuating member 310 changes, thereby providing a driving force to push the valve assembly 32 to move.

[0066] In some embodiments, when the driving assembly 31 is powered on, the actuating member 310 expands and elongates under the heating of the current, and in turn pushes the valve assembly 32 to open to open the replenishment passage 13. When the driving assembly 31 is powered off, the actuating member 310 gradually cools down to return to its original state, and the valve assembly 32 is closed to close the replenishment passage 13.

[0067] In some embodiments, the actuating member 310 can be a spring made of a shape memory alloy (SMA) or other shape memory materials.

[0068] In some embodiments, the driving assembly 31 can also include a first connecting member 311 and a second connecting member 312, both ends of the actuating member 310 are connected with the first connecting member 311 and the second connecting member 312, and in turn are electrically connected with the control module through the first connecting member 311 and the second connecting member 312.

[0069] The first connecting member 311 can include a connecting rod 3111 and a limiting disc 3112 which extends outwardly from the outer wall of the connecting rod 3111. The actuating member 310 can be sleeved on the connecting rod 3111, and the upper end face of the actuating member 310 can abut against the limiting disc 3112. The upper end free end of the actuating member 310 can also be embedded in the limiting disc 3112 for fixation.

[0070] The second connecting member 312 can be disc-shaped and is arranged in an up-down spaced manner with the limiting disc 3112. The lower end face of the actuating member 310 can abut against the second connecting member 312, and the lower end free end of the actuating member 310 can be embedded in the second connecting member 312 for fixation. The connecting rod 3111 can be longitudinally arranged through the second connecting member 312 and is insulated between the connecting rod 3111 and the second connecting member 312, and the connecting rod 3111 can move back and forth in the second connecting member 312.

[0071] The valve assembly 32 comprises a valve 321 connected with the first connecting member 311. When the actuating member 310 expands and elongates under the heating of the electric current, the actuating member 310 pushes the limiting disc 3112 to move, and in turn pushes the valve 321 to move, so as to open the liquid supplement passage 13.

[0072] The valve 321 can comprise a valve rod 3211 connected with the first connecting member 311 and a valve disc 3212 arranged at one end of the valve rod 3211. The valve rod 3211 is coaxially fixedly connected with the first connecting member 311. The liquid storage member 111 can further have a through hole 1112 formed therethrough, and the valve rod 3211 is arranged in the through hole 1112 and can move back and forth in the through hole 1112. The cross-sectional dimension of the through hole 1112 is smaller than the cross-sectional dimension of the liquid supplement passage 13, so that the aerosol generating substrate flowing down from the liquid supplement passage 13 can be received by the portion of the liquid storage member 111 located around the through hole 1112, and in turn diffused to the entire liquid storage member 111.

[0073] The valve disc 3212 is used to open or close the liquid supplement passage 13. In some embodiments, the valve disc 3212 can be arranged at the upper end opening of the liquid supplement passage 13, and the valve disc 3212 can abut against the partition wall 151 to close the liquid supplement passage 13, or move upward to be away from the partition wall 151 to open the liquid supplement passage 13.

[0074] In some embodiments, the valve assembly 32 further comprises a sealing member 322, which can be made of elastic sealing materials such as silica gel, so as to improve the sealing effect on the liquid supplement passage 13. Specifically, the sealing member 322 can be sleeved on the valve rod 3211, and the upper end of the sealing member 322 abuts against the valve disc 3212. When the valve disc 3212 is in the position of closing the liquid supplement passage 13, the valve disc 3212 is tightly abutted on the partition wall 151 through the sealing member 322, so as to more effectively seal the liquid supplement passage 13.

[0075] In some embodiments, the valve assembly 32 further comprises an elastic element 323 connected with the valve 321. The elastic element 323 is used to provide an elastic restoring force, so that the valve 321 is restored from the state of opening the liquid supplement passage 13 to the state of closing the liquid supplement passage 13.

[0076] In some embodiments, the elastic element 323 can be a spring and can be sleeved on the valve rod 3211. The upper end of the elastic element 323 can abut against the sealing member 322, or a boss can be formed on the valve rod 3211 for the upper end of the elastic element 323 to abut against. Of course, in other embodiments, the elastic element 323 can also adopt other elements capable of providing elastic force, such as elastic sheets, coil springs, etc.

[0077] In some embodiments, the electronic atomization device 1 comprises a support seal 60, which can be made of elastic sealing material such as silica gel, and can seal the lower end of the first liquid storage tank 11 to prevent liquid leakage.

[0078] The support seal 60 can comprise a main body part 61, a sealing support part 63, and a connecting part 62 connecting the main body part 61 and the sealing support part 63. The main body part 61 can comprise a sealing bottom wall 611 and a sealing side wall 612 extending upward from the periphery of the sealing bottom wall 611. The sealing bottom wall 611 covers the lower end opening of the first liquid storage tank 11, and the sealing side wall 612 can be sealingly sleeved between the liquid storage shell 154 and the support 16. Of course, in other embodiments, the main body part 61 can also not comprise the sealing side wall 612.

[0079] The sealing support part 63 can be annular and sealingly sleeved on the valve rod 3211, which can prevent liquid from leaking along the valve rod 3211. The sealing support part 63 is fixed with the valve rod 3211, which can move back and forth with the valve rod 3211. In some embodiments, the sealing support part 63 can also be used to limit the elastic element 323, specifically, the lower end of the elastic element 323 can abut against the sealing support part 63.

[0080] The connecting part 62 is a thin-walled structure that can be deformed under external force, so that the sealing support part 63 can move back and forth relative to the main body part 61, and can maintain sealing during movement. In some embodiments, the connecting part 62 can comprise a corrugated connecting part 621 and a tapered connecting part 622. The corrugated connecting part 621 is connected with the sealing bottom wall 611, the upper end of the tapered connecting part 622 is connected with the corrugated connecting part 621, and the lower end of the tapered connecting part 622 is connected with the sealing support part 63. When the valve rod 3211 moves up and down to drive the sealing support part 63 to move, the tapered connecting part 622 can expand outward or contract inward.

[0081] The working process of the electronic atomization device 1 can be as follows: when the user starts to puff, the airflow sensing piece 50 senses the change of air pressure and starts the power supply of the battery 40 to the atomization core 20 through the control module, and the aerosol generating substrate is atomized immediately. At the same time, the control module starts to accumulate the atomization time. Once the accumulated atomization time reaches the preset threshold, the control module sends a driving signal to the driving assembly 31, at this time, the actuating piece 310 is heated and elongated due to power-on, and then pushes the upper valve 321 to open. After the valve 321 is opened, the aerosol generating substrate in the second liquid storage tank 12 can flow into the first liquid storage tank 11 through the liquid supplementing channel 13 under the action of gravity, to realize automatic liquid supplementing. When the liquid supplementing is completed, the control module stops sending the driving signal to the driving assembly 31, the actuating piece 310 is gradually cooled and shortened due to power-off, and the valve 321 is moved downward to reset under the action of gravity and the elastic force of the elastic element 323, to close the liquid supplementing channel 13 and cut off the connection between the first liquid storage tank 11 and the second liquid storage tank 12.

[0082] It can be understood that the above technical features can be used in any combination without limitation.

[0083] The above embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, the above technical features can be freely combined without departing from the concept of the present application, and some modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application should belong to the scope of the claims of the present application.

Claims

1. An electronic atomizing device, characterized by, The electronic atomization device comprises: a first liquid storage bin (11) in which a liquid storage member (111) is arranged; an atomization core (20) in fluid communication with the liquid storage member (111); a second liquid storage bin (12); a liquid supplement channel (13) connecting the first liquid storage bin (11) and the second liquid storage bin (12); and an electrically controlled switch assembly (30) configured to open the liquid supplement channel (13) when powered on and close the liquid supplement channel (13) after power-off. The liquid storage space of the first liquid storage bin (11) is smaller than that of the second liquid storage bin (12).

2. The electronic atomizing device of claim 1, wherein, The electronic atomization device comprises a control module, 3. The electronic atomizing device of claim 1, wherein, The electrically controlled switch assembly (30) comprises a driving assembly (31) connected with the control module and a valve assembly (32) connected with the driving assembly (31), and the driving assembly (31) comprises an actuating member (310) made of shape memory material. The actuating member (310) is a spring made of shape memory alloy, 4. The electronic atomizing device of claim 3, wherein, The actuating member (310) is elongated after heating to push the valve assembly (32) to move and open the liquid supplement channel (13). The driving assembly (31) further comprises a first connecting member (311) and a second connecting member (312), 5. The electronic atomizing device of claim 4, wherein, The first connecting member (311) is insulatively arranged in the second connecting member (312) and can move back and forth relative to the second connecting member (312), The actuating member (310) is sleeved on the first connecting member (311), and both ends of the actuating member (310) are connected with the first connecting member (311) and the second connecting member (312), respectively. The valve assembly (32) comprises a valve (321) connected with the driving assembly (31) and an elastic element (323) connected with the valve (321), 6. The electronic atomizing device of claim 3, wherein, The elastic element (323) is used to provide an elastic restoring force to reset the valve (321) from a state of opening the liquid supplement channel (13) to a state of closing the liquid supplement channel (13). The control module is configured to supply power to the electrically controlled switch assembly (30) when the cumulative atomization time reaches a preset threshold.

7. The electronic atomizing device of claim 3, wherein, The electronic atomization device comprises a housing (10) in which a first space (1410) located at a lower portion and a second space (1420) located at an upper portion are separated, 8. The electronic atomizing device of claim 3, wherein, The first liquid storage bin (11), the atomization core (20) and the control module are located in the first space (1410), and the second liquid storage bin (12) is located in the second space (1420). The electronic atomization device further comprises a battery (40) arranged in the first space (1410).

9. The electronic atomizing device of claim 8, wherein, After the liquid supplement channel (13) is opened, aerosol generating substrate in the second liquid storage bin (12) can flow to the first liquid storage bin (11) under the action of gravity.

10. The electronic atomizing device according to any one of claims 1-9, wherein, ​

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