Aerosol generating device

Abstract

The invention discloses an aerosol generating device. The aerosol generating device comprises an atomizer and a driving unit, the atomizer comprises a first shell, a cavity, an atomizing core arranged in the cavity and a blocking piece. The cavity is divided into a liquid storage area and a containing area by the blocking piece, and the atomizing core is located in the containing area. The first shell is provided with a sealing part capable of moving relative to the first shell; the blocking piece can move between a first position and a second position; at the first position, the liquid storage area is isolated from the accommodating area; and at the second position, the driving unit is propped against the blocking piece through the sealing part, so that the liquid storage area is communicated with the accommodating area. The driving unit can control the blocking piece in the cavity to be switched between the second position and the first position so as to flexibly control the opportunity that the aerosol generating matrix enters the containing area where the atomizing core is located, it is avoided that too much aerosol generating matrix is accumulated at the position of the atomizing core, and therefore liquid leakage at the position of the atomizing core is effectively avoided.

Description

Technical Field

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

[0002] The existing aerosol generating device usually has an atomizing core and a liquid storage cavity. The liquid aerosol generating matrix stored in the liquid storage cavity reaches the atomizing core and is heated and atomized, and the generated aerosol is for the user to inhale. The atomizing core usually uses a porous body (such as ceramics, cotton, etc.) to lock the liquid aerosol generating matrix. The defects of the prior art are: the atomizing core is immersed in the liquid aerosol generating matrix in the liquid storage cavity for a long time, and the liquid storage cavity continuously supplies liquid to the atomizing core to ensure that there is enough liquid aerosol generating matrix around the atomizing core when it is working. However, in the case of transportation, or when the air pressure and temperature of the external environment change, the air pressure in the liquid storage cavity will increase, and the atomizing core is prone to leakage due to the decrease in the liquid locking ability of the atomizing core, resulting in a poor user experience. In addition, all the aerosol generating matrix in the liquid storage cavity is always in a heated state when the atomizing core is working, which has a negative impact on the quality and taste of the aerosol generating matrix in the liquid storage cavity. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an improved aerosol generating device to reduce the risk of liquid leakage at the atomizing core and avoid negative impact on the quality and taste of the aerosol generating matrix.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide an aerosol generating device, which includes an atomizer and a driving unit; the atomizer includes a first shell, a cavity defined by the first shell, an atomizer core and a barrier member arranged in the cavity; the barrier member divides the cavity into a liquid storage area and a accommodating area, and the atomizer core is located in the accommodating area; the first shell is provided with a sealing portion that can move relative to the first shell; the barrier member can move between a first position and a second position; in the first position, the liquid storage area and the accommodating area are isolated; in the second position, the driving unit abuts against the barrier member through the sealing portion, so that the liquid storage area and the accommodating area are connected.

[0005] Preferably, the driving unit comprises an abutment member and at least one memory metal; in the second position, the memory metal is in an energized state, and the abutment member contacts the sealing portion under the push of the memory metal, and abuts against the blocking member through the sealing portion.

[0006] Preferably, the aerosol generating device further comprises a power supply; the driving unit further comprises a first electrode and a second electrode; the positive electrode of the first electrode is connected to the power supply, the negative electrode of the first electrode is connected to the positive electrode of the second electrode, and the negative electrode of the second electrode is connected to the power supply;

[0007] The abutment member is arranged at the periphery of the first electrode; at least one of the memory metals is connected to the first electrode and is arranged axially between the first electrode and the abutment member;

[0008] And / or, the abutment member is arranged on the periphery of the second electrode; at least one of the memory metals is connected to the second electrode and is axially arranged between the second electrode and the abutment member.

[0009] Preferably, the first electrode comprises a first conductive part and a second conductive part connected to each other, the lateral dimension of the first conductive part is larger than the lateral dimension of the second conductive part; one end of the first conductive part away from the second conductive part is the positive electrode of the first electrode, and one end of the second conductive part away from the first conductive part is the negative electrode of the first electrode; the abutment is sleeved on the second conductive part; at least one memory metal is arranged on the periphery of the second conductive part and is located between the first conductive part and the abutment along the axial direction;

[0010] And / or, the second electrode includes a third conductive part and a fourth conductive part connected to each other, the lateral dimension of the third conductive part is greater than the lateral dimension of the fourth conductive part; the end of the third conductive part away from the fourth conductive part is the negative electrode of the second electrode, and the end of the fourth conductive part away from the third conductive part is the positive electrode of the second electrode; the abutment is sleeved on the fourth conductive part; at least one memory metal is arranged on the periphery of the fourth conductive part and is axially located between the third conductive part and the abutment.

[0011] Preferably, the abutment member includes a base sleeved on the second conductive part and / or the third conductive part, and a pin connected to the base; in the second position, the abutment member contacts the sealing part with its pin under the push of the memory metal, and the pin abuts against the barrier member through the sealing part.

[0012] Preferably, the atomizer core is connected to the cathode of the first electrode and the anode of the second electrode respectively.

[0013] Preferably, the memory metal is a metal coil;

[0014] And / or, the driving unit further includes a second shell; the abutment member and the memory metal are arranged in the second shell; and the second shell is connected to the first shell.

[0015] Preferably, the driving unit comprises an electrode assembly for connecting to a power source and at least one memory metal connected to the electrode assembly; in the second position, the memory metal is in an energized state, the electrode assembly contacts the sealing portion and abuts against the barrier member through the sealing portion.

[0016] Preferably, the atomizer further comprises at least one elastic member disposed in the cavity, and each of the elastic members is connected between the first shell and the barrier member.

[0017] Preferably, the barrier comprises a cylinder and an abutment portion connected to the cylinder; the cylinder is sleeved on the periphery of the atomizer core;

[0018] The first shell is provided with a groove at a position corresponding to the sealing portion; the abutting portion of the blocking member is plug-fitted with the groove.

[0019] The present invention has at least the following beneficial effects: the sealing portion can not only seal and isolate the cavity from the outside atmosphere, but also serve as a force transmission medium between the driving unit outside the cavity and the barrier inside the cavity. The driving unit can indirectly contact the barrier inside the cavity through the movable sealing portion, thereby controlling the barrier inside the cavity to switch between the second position and the first position. In this way, the timing of the aerosol generating matrix entering the accommodating area where the atomizer core is located can be flexibly controlled to avoid excessive accumulation of aerosol generating matrix at the atomizer core, thereby effectively reducing the risk of leakage at the atomizer core, extending the life of the atomizer core, and avoiding negative effects on the quality and taste of the aerosol generating matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0021] Figure 1 is a schematic diagram of the overall structure of an aerosol generating device according to a first embodiment of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of a top-down perspective;

[0023] Figure 3 yes Figure 2 AA direction cross-sectional view;

[0024] Figure 4 yes Figure 2 BB direction cross-sectional view;

[0025] Figure 5 yes Figure 1 An exploded structural diagram of the aerosol generating device shown;

[0026] Figure 6 yes Figure 5 A further exploded structural diagram of the aerosol generating device shown;

[0027] Figure 7 is a schematic diagram of a longitudinal cross-sectional structure of an aerosol generating device in a first direction according to a second embodiment of the present invention;

[0028] Figure 8 is a schematic diagram of a longitudinal cross-sectional structure of an aerosol generating device in a second direction according to a second embodiment of the present invention;

[0029] Fig. 9 FIG. 4 is a schematic longitudinal cross-sectional view of an atomizer of an aerosol generating device according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0031] like Figures 1 to 3 As shown, the aerosol generating device of the first embodiment of the present invention includes an atomizer 1 and a driving unit 2 arranged on one side of the atomizer 1. The atomizer 1 includes a first shell 11, a cavity arranged in the first shell 11, an atomizer core 12 and a barrier 13 arranged in the cavity. The atomizer core 12 is used to receive the aerosol generating substrate in the cavity, and generates heat in the energized state to heat and atomize the aerosol generating substrate to generate an aerosol for the user to inhale. "Aerosol generating substrate" refers to a substrate that can release volatile compounds that can form an aerosol, and such volatile compounds can be released by heating or the like. The aerosol generating substrate can be in solid form or in liquid form. The aerosol generating substrate can be one or both of the aerosol generating substrate contained in the liquid storage part and the aerosol generating substrate included in the aerosol generating product. Preferably, liquid nicotine or an aerosol generating substrate containing a flavor / flavoring agent can be used in the liquid storage part, and an aerosol generating substrate containing solid tobacco can be used in the aerosol generating product.

[0032] The barrier 13 divides the cavity into a liquid storage area 110a and a receiving area 110b. The atomizer core 12 is located in the receiving area 110b.

[0033] The first shell 11 is provided with a sealing portion 115 that can move relative to the first shell 11. The sealing portion 115 can be an independent component, connected to the first shell 11, and can move relative to the first shell 11. The sealing portion 115 can also be an integrally formed structure with the first shell 11. Specifically, the sealing portion 115 can be made of elastic materials such as silicone, rubber, and silicone rubber. The sealing portion 115 can be used to seal and isolate the cavity from the outside atmosphere, and can also serve as a force medium for the barrier 13 to move relative to the first shell 11.

[0034] The barrier 13 is movable between a first position and a second position to control the communication between the liquid storage area 110 a and the accommodating area 110 b .

[0035] In the first position, the liquid storage area 110a and the accommodating area 110b are isolated, and the aerosol generating substrate (especially the liquid aerosol generating substrate) in the liquid storage area 110a cannot enter the accommodating area 110b where the atomizing core 12 is located. At this time, the liquid supply is stopped. At the same time, the blocking member 13 may or may not be in contact with the sealing portion 115.

[0036] In the second position, the driving unit 2 on one side of the atomizer 1 presses against the sealing portion 115, and the driving unit 2 abuts against the barrier 13 through the sealing portion 115, the liquid storage area 110a and the accommodating area 110b are connected, and the aerosol generating substrate in the liquid storage area 110a can enter the accommodating area 110b where the atomizing core 12 is located. That is, the sealing portion 115 can also serve as a force transmission medium between the driving unit 2 outside the cavity and the barrier 13 inside the cavity.

[0037] That is, the drive unit 2 can indirectly contact the barrier 13 in the cavity through the movable sealing portion 115, so as to control the barrier 13 in the cavity to switch between the second position and the first position. Thus, the timing of the aerosol generating matrix entering the accommodating area 110b where the atomizing core 12 is located can be flexibly controlled to avoid the accumulation of too much aerosol generating matrix at the atomizing core 12, effectively reducing the risk of leakage at the atomizing core 12 from the source of leakage (atomizing core 12), extending the life of the atomizing core 12, and avoiding negative effects on the quality and taste of the aerosol generating matrix. Therefore, the liquid storage area 110a can be used to store most of the aerosol generating matrix, and according to actual needs, the aerosol generating matrix can be intermittently fed into the accommodating area 110b. The sealing portion 115 can not only play the role of sealing and isolating the cavity from the external atmosphere, but also serve as a force transmission medium between the drive unit 2 outside the cavity and the barrier 13 in the cavity.

[0038] The drive unit 2 has at least two different embodiments, which will be described in detail below. In the first embodiment, the drive unit 2 uses the memory metal 23 as the core drive component, and the barrier 13 in the drive cavity switches between the second position and the first position through the shape change of the memory metal 23 under temperature change; in the second embodiment, the drive unit 2 itself does not have a shape change, but the barrier 13 is switched between the second position and the first position by disassembling and assembling the drive unit 2 and the atomizer 1.

[0039] like Figure 3As shown, in the first embodiment, the drive unit 2 includes an abutment member 20 and at least one memory metal 23. The memory metal 23 has a physical property that its shape responds to temperature. The memory metal 23 may be a nickel-titanium alloy. When the memory metal 23 is energized, the temperature rises and the deformation occurs under the thermal effect of the current; after the temperature gradually decreases and recovers to a certain degree, the memory metal 23 can return to its original state. In the first position, the memory metal 23 is not energized, and the memory metal 23 is in its initial form at this time. In the second position, the memory metal 23 is energized, and the memory metal 23 after being energized gradually heats up under the thermal effect of the current. After the temperature rises to a certain degree, the form of the memory metal 23 changes relative to its initial form, for example, the memory metal 23 begins to stretch along a preset direction, that is, the length of the memory metal 23 along the preset direction in the second position is greater than the length of the memory metal 23 along the preset direction in the first position. It should be noted that the preset direction may be consistent with the direction in which the barrier 13 moves between the second position and the first position; or, the preset direction may also be consistent with the longitudinal / length direction / axial direction when the aerosol generating device is normally used. The elongated memory metal 23 abuts against the abutment member 20, applying a thrust to the abutment member 20, so that the abutment member 20 contacts the sealing portion 115 under the push of the memory metal 23, and abuts against the barrier member 13 through the sealing portion 115, so that the liquid storage area 110a and the accommodating area 110b are connected, thereby realizing the introduction of the aerosol generating matrix into the accommodating area 110b where the atomizer core 12 is located.

[0040] Furthermore, if Figure 3 As shown, in the first embodiment, the driving unit 2 further includes a first electrode 21 and a second electrode 22. The aerosol generating device further includes a power supply (not shown). The positive electrode of the first electrode 21 is connected to the power supply, the negative electrode of the first electrode 21 is connected to the positive electrode of the second electrode 22, and the negative electrode of the second electrode 22 is connected to the power supply. In the power-on state, the current direction is power supply-first electrode 21-second electrode 22-power supply.

[0041] The abutment member 20 is disposed on the periphery of the first electrode 21. At least one memory metal 23 is connected to the first electrode 21 and is axially disposed between the first electrode 21 and the abutment member 20. It should be noted that the "axial direction" may be consistent with the axial direction of the atomization core 12, or consistent with the longitudinal / length direction / axial direction when the aerosol generating device is normally used.

[0042] Alternatively, in other embodiments, the abutting member 20 may also be disposed on the periphery of the second electrode 22. At least one memory metal 23 is connected to the second electrode 22 and is disposed between the second electrode 22 and the abutting member 20 along the axial direction.

[0043] Alternatively, in other embodiments, the abutment member 20 may also be disposed at the periphery of the first electrode 21 and the periphery of the second electrode 22. At least one memory metal 23 is connected to the first electrode 21 and is disposed axially between the first electrode 21 and the abutment member 20; at least another memory metal 23 is connected to the second electrode 22 and is disposed axially between the second electrode 22 and the abutment member 20. The memory metal 23 connected to the first electrode 21 and / or the second electrode 22 is not limited to one, and may also be two, three, etc.

[0044] Specifically, the first electrode 21 is mechanically and / or electrically connected to the memory metal 23. After starting the power supply connected to the first electrode 21 and the second electrode 22, a current loop is formed between the first electrode 21, the memory metal 23, the second electrode 22 and the power supply. The memory metal 23 is deformed by the thermal effect of the current, thereby pushing the abutment 20, so that the abutment 20 contacts the sealing portion 115 on the first shell 11 of the atomizer 1, thereby abutting against the barrier 13 through the sealing portion 115, so that the liquid storage area 110a and the accommodating area 110b are connected, and the barrier 13 reaches the second position. Turn off the power supply connected to the first electrode 21 and the second electrode 22, the memory metal 23 is in a non-powered state, and as the temperature of the memory metal 23 naturally drops to a certain degree, the memory metal 23 returns to its initial shape, and the barrier 13 naturally reaches the first position. It can be seen that the barrier 13 can be indirectly controlled to switch between the second position and the first position by simply controlling the switch of the power supply.

[0045] The switch of the power supply can be triggered by the user's suction action. For example, the aerosol generating device may include an airflow sensing switch (not shown), which is arranged in the air inlet channel of the aerosol generating device and is mechanically and / or electrically connected to the power supply. Under the action of the user's suction, the outside air enters the air inlet channel, triggering the airflow sensing switch, and the airflow sensing switch transmits the opening electrical signal to the power supply. After the power supply receives the opening electrical signal, it starts, and the memory metal 23 starts to be energized and heated until the barrier 13 reaches the second position. The power supply can be automatically turned off after working for a preset period of time, and the memory metal 23 is then powered off. After the temperature naturally drops, the barrier 13 naturally reaches the first position. Specifically, the aerosol generating device also includes a control circuit board, which is respectively connected to the power supply and the airflow sensing switch, and the control circuit board is used to control the opening and closing of the power supply.

[0046] like Figure 4As shown, in the first embodiment, the atomizer core 12 is connected to the negative electrode of the first electrode 21 and the positive electrode of the second electrode 22 respectively. Specifically, the atomizer core 12 includes an atomizer body 121, a heating element 122 and two pins 123. The atomizer body 121 of the atomizer core 12 can be a porous body, for example, a ceramic, and the atomizer body 121 of the atomizer core 12 is used to cache the aerosol generating matrix. The heating element 122 is arranged on the atomizer body 121 of the atomizer core 12, and is used to heat the atomizer body 121 of the atomizer core 12 so that the aerosol generating matrix is ​​atomized to generate an aerosol. One of the pins 123 is connected to the heating element 122 at one end and to the first electrode 21 at the other end; the other pin 123 is also connected to the heating element 122 at one end and to the second electrode 22 at the other end. After starting the power supply connected to the first electrode 21 and the second electrode 22, a current loop is formed between the first electrode 21, the memory metal 23, the atomizer core 12, the second electrode 22 and the power supply. That is, the first electrode 21 also serves as a medium for the atomizer core 12 to access the power supply.

[0047] Similarly, in other embodiments, when the memory metal 23 is provided at the second electrode 22, the second electrode 22 can also be used as the energizing medium of the atomizer core 12. That is, the memory metal 23 and the atomizer core 12 can share the first electrode 21 or the second electrode 22 as the energizing medium. Of course, in other embodiments, the atomizer core 12 and the memory metal 23 may not share the first electrode 21 or the second electrode 22 as the energizing medium, but each has a relatively independent energizing medium: for example, the atomizer core 12 is not connected to the first electrode 21, but is respectively connected to another third electrode (not shown) and a fourth electrode (not shown), and the third electrode and the fourth electrode are respectively connected to a power source, so that the atomizer core 12-third electrode-fourth electrode-power source constitute an independent current loop. Alternatively, the third electrode and the fourth electrode can also be connected to another independent power source.

[0048] When the atomizer core 12 is connected to the first electrode 21, that is, the atomizer core 12 and the memory metal 23 share the first electrode 21 as the energizing medium, the atomizer core 12 and the memory metal 23 can be controlled to be energized and heated at the same time by controlling the switch of the power supply: when the power supply is turned on, the atomizer core 12 and the memory metal 23 start to work at the same time: the heating element 122 of the atomizer core 12 starts to be energized and heated, and the aerosol generating matrix in the accommodating area 110b is heated and atomized to generate aerosol; at the same time, the memory metal 23 starts to be energized and heated, and gradually deforms with the gradually rising temperature, gradually pushing the abutment member 20, until the barrier member 13 in the cavity reaches the second position, the liquid storage area 110a and the accommodating area 110b are connected, and the aerosol generating matrix stored in the liquid storage area 110a enters the accommodating area 110b for the atomizer core 12 to heat and atomize. In order to prevent the atomizer core 12 from being dry-burned, it is necessary to ensure that there is a certain amount of aerosol-generating substrate in the accommodating area 110 b before the aerosol-generating device is used for the first time.

[0049] When the atomizer core 12 is not connected to the first electrode 21, that is, the atomizer core 12 is connected to the other third and fourth electrodes respectively, because the atomizer core 12 and the memory metal 23 belong to different current loops, the timing of the atomizer core 12 and the memory metal 23 being energized and heated can be controlled respectively:

[0050] In the first case, the atomizer core 12 is powered on and heated first, and then the memory metal 23 starts to be powered on and heated after the atomizer core 12 is powered off. At this time, it is necessary to ensure that there is a certain amount of aerosol generating substrate in the accommodating area 110b before the aerosol generating device is used for the first time, and it is necessary to quantitatively control the amount of aerosol generating substrate consumed each time the aerosol generating substrate is powered on and heated, and the amount of aerosol generating substrate input from the liquid storage area 110a to the accommodating area 110b by the barrier 13 each time it reaches the second position, so as to avoid dry burning of the atomizer core 12.

[0051] The second situation is that after the atomizer core 12 is powered on and heated for a preset period of time, before the atomizer core 12 is powered off, the memory metal 23 starts to be powered on and heated, that is, the power-on and heating time of the atomizer core 12 and the power-on and heating time of the memory metal 23 partially overlap.

[0052] Furthermore, if Figure 3 and Figure 5As shown, in the first embodiment, the first shell 11 may include an upper body 111, a lower body 112 and an air guide tube 113. The upper body 111 is connected to the lower body 112, and the upper body 111 and the lower body 112 together enclose a cavity. The upper body 111 and the lower body 112 may be detachably connected, so that after the upper body 111 is removed, the aerosol generating matrix can be injected into the liquid storage area 110a of the cavity. The air guide tube 113 is arranged inside the lower body 112, and the lower end of the air guide tube 113 is connected to the atomization core 12. A nozzle hole 114 is provided on the upper body 111, and the nozzle hole 114 on the upper body 111 is connected to the air guide inside the air guide tube 113. The aerosol generated in the accommodating area 110b flows through the air guide tube 113 and the nozzle hole 114 in sequence, and the user inhales the overflowing aerosol at the nozzle hole 114. In the first position, the barrier 13 is in close contact with the inner wall of the lower seat 112 to separate the cavity into a liquid storage area 110a and a receiving area 110b that are not connected to each other. In the first position, the inner wall of the upper seat 111, the inner wall of the lower seat 112, the outer wall of the air duct 113, and the barrier 13 together define the liquid storage area 110a. The drive unit 2 also includes a second shell 24. The abutment 20, the memory metal 23, the first electrode 21, and the second electrode 22 are all arranged in the second shell 24. The second shell 24 is detachably or non-detachably connected to the first shell 11. Preferably, the second shell 24 is detachably connected to the first shell 11, so that the drive unit 2 and the atomizer 1 can be produced and transported separately. When the aerosol generating device is used, the drive unit 2 and the atomizer 1 can be assembled together, so that the assembly gap can be reduced, thereby reducing the risk of leakage during transportation. The first shell 11 and the second shell 24 can be connected by snap-fit ​​connection, magnetic connection or other connection methods.

[0053] like Figure 3 and Figure 4 As shown, in the first embodiment, a sealing member 70 is disposed between the upper seat body 111 and the lower seat body 112 to ensure the sealing of the cavity.

[0054] Furthermore, if Figure 6 As shown, in the first embodiment, the second housing 24 further includes an upper housing 241 and a lower housing 242 connected to each other, and the abutment member 20, the memory metal 23, the first electrode 21, and the second electrode 22 are clamped and fixed between the upper housing 241 and the lower housing 242. The upper housing 241 and the lower housing 242 can be detachably connected, such as snap-fit ​​connection, magnetic connection, etc., to facilitate the disassembly and assembly of the abutment member 20, the memory metal 23, the first electrode 21, and the second electrode 22.

[0055] Before the atomizer 1 leaves the factory, a certain amount of liquid aerosol generating matrix can be injected into the accommodating area 110b in advance. When injecting liquid, the atomizer 1 needs to be installed on the corresponding tooling. The tooling is similar to the abutment 20 in the present invention. The barrier 13 is lifted up by the tooling, thereby introducing part of the liquid aerosol generating matrix into the accommodating area 110b to wet the atomizing core 12. After the injection is completed, the atomizer 1 is removed from the tooling to achieve isolation between the liquid storage area 110a and the accommodating area 110b. The main purpose of this step is to allow the user to reserve a certain amount of liquid aerosol generating matrix in the accommodating area 110b when using the aerosol generating device for the first time. The user only needs to install the atomizer 1 on the drive unit 2 to inhale, without waiting for the liquid aerosol generating matrix to wet the atomizing core 12, so that the user experience is better.

[0056] Furthermore, if Figure 3 and Figure 6 As shown, in the first embodiment, the first electrode 21 includes a first conductive portion 211 and a second conductive portion 212 connected to each other, and the lateral dimension of the first conductive portion 211 is greater than the lateral dimension of the second conductive portion 212. It should be noted that the lateral direction is perpendicular to the longitudinal direction or the axial direction. The longitudinal direction may be consistent with the longitudinal direction or the length direction of the aerosol generating device in normal use; the axial direction may be consistent with the axial direction of the first electrode 21, or with the central axis y of the aerosol generating device (see Figure 3 and Figure 4 ) are consistent in their extension direction. One end of the first conductive part 211 away from the second conductive part 212 is the positive pole of the first electrode 21, and one end of the second conductive part 212 away from the first conductive part 211 is the negative pole of the first electrode 21. The abutment 20 is sleeved on the second conductive part 212. At least one memory metal 23 is arranged on the periphery of the second conductive part 212, and is axially located between the first conductive part 211 and the abutment 20. The first conductive part 211 with a larger lateral dimension is sleeved on the second conductive part 212 with a smaller lateral dimension, so that the memory metal 23 can abut between the first conductive part 211 and the abutment 20 along the axial direction, thereby pushing the abutment 20. Specifically, as Figure 6As shown, an umbrella-shaped enclosure 2120 is provided on the outer wall surface of the second conductive part 212, and the enclosure 2120 can move along the axial direction of the second conductive part 212. In the second position, the two ends of the memory metal 23 are respectively abutted between the end surface of the first conductive part 211 facing the second conductive part 212 and the enclosure 2120 on the second conductive part 212. With the enclosure 2120 as the dividing point, the first side of the enclosure 2120 is relatively closer to the first conductive part 211, and the second side of the enclosure 2120 is relatively farther away from the first conductive part 211. The abutment 20 is sleeved on the second conductive part 212 and is located on the second side of the enclosure 2120, so that the memory metal 23 can be limited between the first conductive part 211 and the abutment 20, and the force is transmitted to the abutment 20 through the axial movement of the enclosure 2120.

[0057] like Figure 6 As shown, in the first embodiment, the first conductive portion 211 and the second electrode 22 of the first electrode 21 are both made of conductive materials such as metal. In particular, the second conductive portion 212 of the first electrode 21 is a double-headed spring pin. Of course, in other embodiments, especially when the atomizer 1 is a consumable, the first electrode 21 can also be a lead, which is connected to the power supply and the memory metal 23 respectively by welding or the like. The first conductive portion 211 and the second conductive portion 212 can also be an integrally formed structure.

[0058] In other embodiments, when at least one memory metal 23 is connected to the second electrode 22, similar to the first electrode 21, the second electrode 22 includes a third conductive portion (not shown) and a fourth conductive portion (not shown) connected to each other, and the lateral dimension of the third conductive portion is greater than the lateral dimension of the fourth conductive portion. The end of the third conductive portion away from the fourth conductive portion is the negative electrode of the second electrode 22, and the end of the fourth conductive portion away from the third conductive portion is the positive electrode of the second electrode 22. The abutment 20 is sleeved on the fourth conductive portion. At least one memory metal 23 is arranged on the periphery of the fourth conductive portion and is axially located between the third conductive portion and the abutment 20. Among them, the third conductive portion can be set with reference to the first conductive portion 211, and the fourth conductive portion can be set with reference to the second conductive portion 212, which will not be repeated here.

[0059] like Figure 2 and Figure 4As shown, in the first embodiment, the abutment member 20 comprises a base 202 and a pin 201 connected to the base 202. The base 202 of the abutment member 20 is sleeved on the second conductive portion 212 and / or the third conductive portion. That is, when the memory metal 23 is only provided at the first electrode 21, the substrate 202 of the abutment 20 can be sleeved on the second conductive portion 212 of the first electrode 21, so that the memory metal 23 at the first electrode 21 can be axially located between the first conductive portion 211 and the abutment 20; when the memory metal 23 is only provided at the second electrode 22, the substrate 202 of the abutment 20 can be sleeved on the fourth conductive portion of the second electrode 22, so that the memory metal 23 at the second electrode 22 can be axially located between the third conductive portion and the abutment 20; when the memory metal 23 is provided at both the first electrode 21 and the second electrode 22, the substrate 202 of the abutment 20 can be sleeved on the second conductive portion 212 of the first electrode 21 and the fourth conductive portion of the second electrode 22 at the same time, so that the memory metal 23 at the first electrode 21 can be axially located between the first conductive portion 211 and the abutment 20, and the memory metal 23 at the second electrode 22 can be axially located between the third conductive portion and the abutment 20. Specifically, when in the second position, the abutting member 20 contacts the sealing portion 115 with its ejector pin 201 under the push of the memory metal 23 , and the ejector pin 201 abuts against the blocking member 13 through the sealing portion 115 .

[0060] In some other embodiments, similar to the first embodiment, the driving unit 2 includes an electrode assembly (not shown) for connecting to a power source. At least one memory metal 23 is connected to the electrode assembly. That is, the electrode assembly, the memory metal 23 and the power source form a current loop. The electrode assembly can be made of a memory metal material or a common conductive material. When the electrode assembly is a memory metal, it and the memory metal 23 can be an integrally formed structure. Different from the first embodiment, the component for contacting the sealing portion 115 is an electrode assembly. In the second position, the memory metal 23 is in an energized state, and the memory metal 23 deforms after the temperature rises, and pushes the electrode assembly. The electrode assembly contacts the sealing portion 115 under the push of the memory metal 23, and abuts against the barrier 13 through the sealing portion 115. When the electrode assembly is made of a memory metal material, the electrode assembly can also heat up and deform in the energized state, so as to contact the sealing portion 115 in a self-driven manner. That is, while the electrode assembly serves as a power medium for the memory metal 23, it can also drive the barrier 13 to the second position. Specifically, the electrode assembly may include two electrodes, which may be configured with reference to the first embodiment and will not be described in detail here.

[0061] like Figure 3 and Figure 6As shown, in the first embodiment, the memory metal 23 is a metal coil. The metal coil surrounds the outer periphery of the second conductive portion 212 of the first electrode 21. However, the memory metal 23 is not limited to being a metal coil, and it can also be in other shapes. The memory metal 23 needs to have a certain resistance. According to the resistance formula of the object It can be seen that when the material is determined, ρ is also determined accordingly. On this basis, increasing the length of the object and reducing its cross-sectional area can ensure sufficient resistance. In addition, the power source of the deformation of the memory metal is temperature. The larger the volume of the object, the more energy is required to heat it up. Correspondingly, the heating rate of the object will be smaller over a period of time. Considering all aspects of performance, metal coils (such as nickel-titanium alloy coils) have the characteristics of longer length, smaller cross-sectional area, and smaller volume. Therefore, the memory metal 23 is preferably a metal coil.

[0062] like Figure 3 and Figure 4 As shown, in the first embodiment, the barrier 13 includes a cylinder 131 and an abutting portion 132 connected to the cylinder 131. The cylinder 131 is sleeved on the periphery of the atomizer core 12, and the interval between the cylinder 131 and the atomizer core 12 defines at least part of the accommodating area 110b. The first shell 11 is provided with a groove 116 at a position corresponding to the sealing portion 115. The abutting portion 132 of the barrier 13 is plugged into and matched with the groove 116. With the abutting portion 132 of the barrier 13 as a dividing line, a part of the groove 116 belongs to the liquid storage area 110a, and the other part belongs to the accommodating area 110b. In the first position, the abutting portion 132 of the barrier 13 is plugged into the groove 116; in the second position, the abutting portion 132 of the barrier 13 extends out of the groove 116, or a part is pulled out of the groove 116, so that the liquid in the liquid storage area 110a can enter the accommodating area 110b.

[0063] Furthermore, the atomizer 1 may also include at least one elastic member disposed in the cavity. Each elastic member is connected between the first housing 11 and the barrier 13, and elastic deformation of the elastic member provides elastic force to the barrier, so as to help the barrier 13 quickly return from the second position to the first position, and promote close fit between the barrier 13 and the inner wall surface of the first housing 11, which is conducive to ensuring a good sealing and isolation effect between the liquid storage area 110a and the accommodating area 110b in the first position.

[0064] Specifically, Figure 3 and Figure 4As shown, in the first embodiment, the atomizer 1 includes an elastic member 14, and the two ends of the elastic member 14 are respectively connected to the first housing 11 and the barrier member 13. Specifically, the two ends of the elastic member 14 are respectively connected to the upper seat 111 of the first housing 11 and the barrel 131 of the barrier member 13. The elastic member 14 can always be in a compressed state, thereby providing a downward elastic force for the barrier member 13, which can help the barrier member 13 to quickly return from the second position to the first position, and promote the close fit between the barrier member 13 and the inner wall surface of the lower seat 112, which is conducive to ensuring a good sealing and isolation effect between the liquid storage area 110a and the accommodating area 110b in the first position.

[0065] See also Fig. 9 , Fig. 9 The atomizer of the aerosol generating device of the third embodiment of the present invention is shown. Different from the first embodiment, the atomizer 1 includes two elastic members, namely a first elastic member 141 and a second elastic member 142. The first elastic member 141 is connected between the upper seat 111 of the first housing 11 and the cylinder 131 of the barrier 13. The second elastic member 142 is connected between the inner bottom wall of the lower seat 112 of the first housing 11 and the cylinder 131 of the barrier 13. When the upper seat 111 and the lower seat 112 are assembled together, the first elastic member 141 and the second elastic member 142 are both in a compressed state, and provide a downward elastic force for the barrier 13. In order to ensure that there is an appropriate amount of liquid aerosol generating matrix in the accommodating area 110b when the user uses the aerosol generating device for the first time, so as to reduce the time the user waits for liquid injection, the upper seat 111 and the lower seat 112 are disassembled and the liquid aerosol generating matrix can be injected into the cavity. At this time, because the upper end of the first elastic member 141 is separated from the upper seat 111, the first elastic member 141 recovers its shape and loses its elastic force, and the barrier member 13 loses the elastic force from the first elastic member 141; but the lower end of the second elastic member 142 is still connected to the inner wall surface of the lower seat 112, and the barrier member 13 moves upward under the elastic force of the second elastic member 142 to reach the second position, so that the liquid storage area 110a and the accommodating area 110b are connected, thereby pre-injecting an appropriate amount of liquid aerosol generating matrix into the accommodating area 110b. In this way, when the user uses the aerosol generating device for the first time, there is already an appropriate amount of liquid aerosol generating matrix in the accommodating area 110b, which can reduce the time the user waits for liquid filling and improve the user experience.

[0066] See also Figure 7 and Figure 8 , Figure 7 FIG. 2 shows a schematic diagram of a longitudinal cross-sectional structure of an aerosol generating device according to a second embodiment of the present invention in a first direction. Figure 8 A schematic diagram of the longitudinal cross-sectional structure of an aerosol generating device according to a second embodiment of the present invention in a second direction is shown, wherein the first direction and the second direction are two directions perpendicular to each other. Figure 7 and Figure 8 The viewing angle is the same as that in the first embodiment. Figure 3 and Figure 4 The perspective is consistent.

[0067] like Figure 7 and Figure 8 As shown, in the second embodiment, unlike the first embodiment, the memory metal 23, the abutment member 20, the first electrode 21, the second electrode 22, the third electrode, the fourth electrode, etc. are not required to be arranged in the second housing 24. Specifically, Figure 7 and Figure 8 As shown, in the second embodiment, the driving unit 2 includes a push rod 5, which is connected to the second shell 24; or, the push rod 5 is arranged inside the second shell 24. Specifically, the push rod 5 can be a separate component, and is installed on the second shell 24 as a separate component or is arranged inside the second shell 24. The push rod 5 can also be an integrally formed structure with the second shell 24. When the first shell 11 is connected to the second shell 24, the barrier 13 reaches the second position, and the push rod 5 abuts against the barrier 13 through the sealing portion 115, so that the liquid storage area 110a and the accommodating area 110b are connected. When the first shell 11 is separated from the second shell 24, the barrier 13 reaches the first position, and the liquid storage area 110a and the accommodating area 110b are isolated. That is, when the atomizer 1 is mounted on the drive unit 2, the liquid aerosol generating substrate is introduced into the accommodating area 110b where the atomizer core 12 is located, and when the atomizer 1 is removed from the drive unit 2, the aerosol generating substrate is stopped from being introduced into the accommodating area 110b where the atomizer core 12 is located. Therefore, the barrier 13 can be moved between the second position and the first position by the disassembly and assembly between the atomizer 1 and the drive unit 2.

[0068] In the second embodiment, at least one power source (not shown) may be provided in the second housing 24, and the power source is mechanically and / or electrically connected to the atomizer core 12, and is used to supply power to the atomizer core 12. Specifically, the drive unit 2 may further include a fifth electrode 51 and a sixth electrode 52. The atomizer core 12 may be connected to the fifth electrode 51 and the sixth electrode 52, respectively, and the fifth electrode 51 and the sixth electrode 52 are connected to the power source, respectively, so that the atomizer core 12, the fifth electrode 51, the sixth electrode 52, and the power source form a current loop.

[0069] Any embodiment mentioned in the text may be configured with reference to one or more other embodiments mentioned in the text, which will not be described in detail herein.

[0070] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. An aerosol generating device, It is characterized in that The invention comprises an atomizer (1) and a drive unit (2); the atomizer (1) comprises a first shell (11), a cavity arranged in the first shell (11), an atomizer core (12) arranged in the cavity, and a barrier (13); the barrier (13) divides the cavity into a liquid storage area (110a) and a receiving area (110b) for receiving the atomizer core (12); the first shell (11) is provided with a sealing portion (115) movable relative to the first shell (11); the barrier (13) is movable between a first position and a second position under the drive of the drive unit (2); in the first position, the liquid storage area (110a) and the receiving area (110b) are isolated from each other; in the second position, the drive unit (2) abuts against the barrier (13) through the sealing portion (115), so that the liquid storage area (110a) and the receiving area (110b) are connected.

2. The aerosol generating device according to claim 1, It is characterized in that The driving unit (2) comprises a contact piece (20) and at least one memory metal (23); in the second position, the memory metal (23) is in an energized state, and the contact piece (20) contacts the sealing portion (115) under the push of the memory metal (23), and contacts the blocking piece (13) through the sealing portion (115).

3. The aerosol generating device according to claim 2, It is characterized in that The aerosol generating device further comprises a power source; the driving unit (2) further comprises a first electrode (21) and a second electrode (22); the positive electrode of the first electrode (21) is connected to the power source, the negative electrode of the first electrode (21) is connected to the positive electrode of the second electrode (22), and the negative electrode of the second electrode (22) is connected to the power source; The abutment member (20) is arranged at the periphery of the first electrode (21); at least one memory metal (23) is connected to the first electrode (21) and is axially arranged between the first electrode (21) and the abutment member (20); And / or, the abutment member (20) is arranged on the periphery of the second electrode (22); at least one of the memory metals (23) is connected to the second electrode (22) and is axially arranged between the second electrode (22) and the abutment member (20).

4. The aerosol generating device according to claim 3, It is characterized in that The first electrode (21) comprises a first conductive part (211) and a second conductive part (212) connected to each other, the transverse dimension of the first conductive part (211) is greater than the transverse dimension of the second conductive part (212); one end of the first conductive part (211) away from the second conductive part (212) is the positive electrode of the first electrode (21), and one end of the second conductive part (212) away from the first conductive part (211) is the negative electrode of the first electrode (21); the abutment (20) is sleeved on the second conductive part (212); at least one memory metal (23) is arranged on the periphery of the second conductive part (212) and is located between the first conductive part (211) and the abutment (20) along the axial direction; And / or, the second electrode (22) comprises a third conductive part and a fourth conductive part connected to each other, the lateral dimension of the third conductive part is greater than the lateral dimension of the fourth conductive part; the end of the third conductive part away from the fourth conductive part is the negative electrode of the second electrode (22), and the end of the fourth conductive part away from the third conductive part is the positive electrode of the second electrode (22); the abutment (20) is sleeved on the fourth conductive part; at least one of the memory metals (23) is arranged on the periphery of the fourth conductive part and is axially located between the third conductive part and the abutment (20).

5. The aerosol generating device according to claim 4, It is characterized in that The abutment member (20) comprises a base (202) sleeved on the second conductive part (212) and / or the third conductive part, and a pin (201) connected to the base (202); in the second position, the abutment member (20) contacts the sealing part (115) with its pin (201) under the push of the memory metal (23), and the pin (201) abuts against the barrier member (13) through the sealing part (115).

6. The aerosol generating device according to claim 3, It is characterized in that The atomizing core (12) is respectively connected to the negative electrode of the first electrode (21) and the positive electrode of the second electrode (22).

7. The aerosol generating device according to claim 2, It is characterized in that The memory metal (23) is a metal coil; And / or, the driving unit (2) further comprises a second shell (24); the abutment member (20) and the memory metal (23) are arranged in the second shell (24); and the second shell (24) is connected to the first shell (11).

8. The aerosol generating device according to claim 1, It is characterized in that The drive unit (2) comprises an electrode assembly for connecting to a power source and at least one memory metal (23) connected to the electrode assembly; in the second position, the memory metal (23) is in an energized state, the electrode assembly contacts the sealing portion (115) and abuts against the barrier (13) through the sealing portion (115).

9. An aerosol generating device according to any one of claims 1 to 7, It is characterized in that The atomizer (1) further comprises at least one elastic member (14) arranged in the cavity, and each of the elastic members (14) is connected between the first shell (11) and the barrier member (13).

10. An aerosol generating device according to any one of claims 1 to 7, It is characterized in that The barrier (13) comprises a barrel (131) and an abutting portion (132) connected to the barrel (131); the barrel (131) is sleeved on the periphery of the atomizing core (12); The first shell (11) is provided with a groove (116) at a position corresponding to the sealing portion (115); the abutment portion (132) of the blocking member (13) is plug-fitted into the groove (116).

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