Aerosol generating device and aerosol generating system

Abstract

The present invention relates to an aerosol generating device and an aerosol generating system, wherein the aerosol generating device comprises: a shell having a first inner cavity; a mouthpiece having a second inner cavity, the mouthpiece being movably arranged at one end of the first inner cavity, the first inner cavity and the second inner cavity being connected; a liquid storage part connected to the mouthpiece, having an air inlet and a liquid outlet; in a first state, the air inlet and the liquid outlet are both in a closed state; in a second state, the air inlet and the liquid outlet are both in an open state; in the process of switching from the first state to the second state, the mouthpiece and the shell can generate relative movement so that at least one of the air inlet and the liquid outlet is in an open state; or, the mouthpiece and the shell can generate relative movement, and the air inlet and the liquid outlet are both in a closed state. The aerosol generating device of the present invention can prevent negative pressure from being generated in the liquid storage part.

Description

Technical Field

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

[0002] Traditional cigarettes are harmful to the human body, and electronic cigarettes have emerged as a substitute. The Chinese patent document with publication number CN203424292U discloses an atomization device, including a heating wire assembly consisting of a heating wire, a first oil guide rope and an electronic wire, and a vent pipe, wherein the vent pipe has an assembly hole for accommodating the heating wire assembly, and also includes a second oil guide rope arranged side by side with the first oil guide rope in the assembly hole and in contact with the heating wire.

[0003] A Chinese patent document with publication number CN203913377U discloses an integrated disposable electronic cigarette, comprising an integrated hollow cigarette shell, wherein the side wall is provided with a radial first air inlet through hole, the first air inlet through hole is a battery accommodating cavity in the direction of the cigarette butt, and is an atomizer accommodating cavity in the direction of the cigarette mouthpiece; the shell is provided with a luminous body, a battery, a hollow fixing seat and an atomizer device in sequence from the cigarette butt to the cigarette mouthpiece, and the atomizer device includes a smoke oil cotton, a U-shaped oil guide rope, a heating wire, a fiber tube and a hollow rubber cover. Summary of the invention

[0004] The object of the present invention is to provide an aerosol generating device, comprising: a shell having a first inner cavity; a mouthpiece having a second inner cavity, the mouthpiece being movably arranged at one end of the first inner cavity, the first inner cavity and the second inner cavity being connected; a liquid storage portion connected to the mouthpiece, having an air inlet and a liquid outlet; in a first state, the air inlet and the liquid outlet are both in a closed state; in a second state, the air inlet and the liquid outlet are both in an open state; in the process of switching from the first state to the second state, the mouthpiece and the shell can generate relative movement so that at least one of the air inlet and the liquid outlet is in an open state; or, the mouthpiece and the shell can generate relative movement, and the air inlet and the liquid outlet are both in a closed state.

[0005] Optionally, during the process of switching from the first state to the second state, after the liquid outlet is in the open state, the air inlet is in the open state.

[0006] Optionally, during the process of switching from the first state to the second state, after the air inlet is in the open state, the liquid outlet is in the open state.

[0007] Optionally, the mouthpiece can generate relative movement with the shell in a direction toward or away from the shell so that at least one of the air inlet and the liquid outlet is in an open state, wherein the distance of relative movement between the mouthpiece and the shell is not less than 0.5 mm.

[0008] Optionally, in the first state and the second state, the mouthpiece and the housing remain relatively still.

[0009] Optionally, the cigarette holder is elastically supported on the shell by a first elastic member, and the first elastic member is compressed or stretched during the relative movement between the cigarette holder and the shell.

[0010] Optionally, it also includes:

[0011] a first valve body, inserted in the liquid outlet, the first valve body being elastically supported in the liquid outlet by a second elastic member, and in the process of relative movement between the cigarette holder and the housing, the first valve body being able to move relative to the liquid outlet, so that the liquid outlet is in an open state or a closed state;

[0012] A second valve body is inserted into the air inlet. The second valve body is elastically supported in the air inlet by a third elastic member. During the relative movement between the cigarette holder and the shell, the second valve body can move relative to the air inlet to place the air inlet in an open state or a closed state.

[0013] Optionally, along the movement direction of the cigarette holder, the liquid outlet has a first blocking portion and a second blocking portion arranged at intervals, and the second blocking portion is closer to the atomization portion arranged in the first inner cavity than the first blocking portion;

[0014] A second elastic member is disposed in the liquid outlet, one end of the second elastic member is connected to the first blocking portion, and the other end of the second elastic member is connected to the first valve body;

[0015] The first valve body can move in a direction toward the first blocking portion to open the liquid outlet, and the second elastic member is compressed; or, the first valve body can move in a direction away from the first blocking portion until it abuts against the second blocking portion to close the liquid outlet, and the second elastic member is reset.

[0016] Optionally, along the movement direction of the cigarette holder, the second valve body has a first end and a second end, the first end is located in the liquid storage portion, and the second end is inserted into the air inlet;

[0017] The third elastic member is disposed in the air inlet, one end of the third elastic member is connected to the second end, and the other end is connected to the air inlet;

[0018] The first end can move in a direction toward the liquid storage portion until it is separated from the air inlet to open the air inlet, and the third elastic member is compressed; or, the first end can move in a direction away from the liquid storage portion until it is against the air inlet to close the air inlet, and the third elastic member is reset.

[0019] Optionally, the liquid storage part has an air inlet end, the air inlet port is arranged at the air inlet end, along the movement direction of the cigarette holder, the air inlet end of the liquid storage part is connected to the cigarette holder, the other end of the liquid storage part opposite to the air inlet end is inserted into the atomization part, one end of the first elastic member is connected to the atomization part, and the other end is connected to the other end of the liquid storage part;

[0020] The cigarette holder can move in a direction toward the shell until it abuts against one end of the shell, and the first elastic member, the second elastic member and the third elastic member are compressed. The cigarette holder can move in a direction away from the shell until it is separated from the one end of the shell, and the first elastic member, the second elastic member and the third elastic member are reset.

[0021] Optionally, along the movement direction of the cigarette holder, in the first state, the second valve body is spaced apart from the cigarette holder, and in the second state, the second valve body is against the cigarette holder; or, in the first state and the second state, the second valve body is against the cigarette holder.

[0022] Optionally, the cigarette holder is movably connected to the air inlet end, and after being able to move a set distance relative to the air inlet end in a direction toward the housing, the liquid storage portion and the cigarette holder move synchronously.

[0023] Optionally, after the mouthpiece moves a first distance relative to the shell, the liquid outlet is in an open state, and after the mouthpiece moves a second distance relative to the shell, the air inlet is in an open state, and the sum of the first distance and the second distance is not less than 0.5 mm.

[0024] Optionally, after the cigarette holder moves the first distance relative to the shell, and then continues to move the second distance, the cigarette holder and one end of the shell abut against each other, and the first distance is smaller than the second distance.

[0025] Optionally, at least when the cigarette holder abuts against one end of the shell, the first valve body abuts against the atomization part.

[0026] Optionally, the surface of the air inlet end facing the first end is a concave surface, and the surface of the first end facing the air inlet end is a convex surface, and the convex surface matches the concave surface.

[0027] The present invention also provides an aerosol generating system, comprising: an aerosol generating device as described above; a cigarette rod connected to the aerosol generating device, wherein a power source is provided in the cigarette rod, and the power source is used to supply power to an atomization part of the aerosol generating device.

[0028] As described above, the present invention provides an aerosol generating device, comprising: an outer shell, having a first inner cavity; a mouthpiece, having a second inner cavity, the mouthpiece being movably arranged at one end of the first inner cavity, the first inner cavity and the second inner cavity being connected; a liquid storage portion, connected to the mouthpiece, having an air inlet and a liquid outlet; in a first state, the air inlet and the liquid outlet are both in a closed state; in a second state, the air inlet and the liquid outlet are both in an open state; in the process of switching from the first state to the second state, the mouthpiece and the outer shell can generate relative movement so that at least one of the air inlet and the liquid outlet is in an open state; or, the mouthpiece and the outer shell can generate relative movement, and the air inlet and the liquid outlet are both in a closed state.

[0029] Thus, when not in use (first state), for example, in a low-pressure environment, since the air inlet and the liquid outlet on the liquid storage part are in a closed state, the interior of the liquid storage part is in a closed state and will not leak. When in use, the mouthpiece and the shell are controlled to produce relative movement to switch the aerosol generating device from the first state to the second state. In the second state, the air inlet and the liquid outlet of the liquid storage part are in an open state, and the air inlet is connected to the outside air. Part of the volume of the liquid flowing out of the liquid storage part can be replenished by air in time, and the gas exchange between the inside of the liquid storage part and the outside can be achieved, and the air pressure balance is maintained without forming a negative pressure. Otherwise, after the smoke liquid in the liquid storage part flows out, negative pressure is generated, and the smoke liquid flows out slowly, causing the problem of dry burning.

[0030] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a side view of an aerosol generating device according to an embodiment of the present invention Figure 1 ;

[0032] Figure 2 is a side view of an aerosol generating device according to an embodiment of the present invention Figure 2 ;

[0033] Figure 3 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention Figure 1 ;

[0034] Figure 4 The aerosol generating device of the embodiment of the present invention is a three-dimensional Figure 1 ;

[0035] Figure 5 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention Figure 2 ;

[0036] Figure 6 The aerosol generating device of the embodiment of the present invention is a three-dimensional Figure 2 ;

[0037] Figure 7 is a three-dimensional diagram of a mouthpiece in an aerosol generating device according to an embodiment of the present invention;

[0038] Figure 8 is a partially enlarged schematic diagram of an aerosol generating device according to an embodiment of the present invention;

[0039] Fig. 9 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention Figure 3 ;

[0040] Fig.10 is a cross-sectional view of an aerosol generating device according to an embodiment of the present invention Figure 4 . DETAILED DESCRIPTION

[0041] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0042] refer to Figures 1 to 4 The present invention provides an aerosol generating device 1, which comprises a housing 11, wherein the housing 11 has a first inner cavity 11a; a mouthpiece 10, wherein the mouthpiece 10 has a second inner cavity 10a and a suction port 13, wherein the mouthpiece 10 is movably disposed at one end of the first inner cavity 11a, and the extension direction of the mouthpiece 10 is ( Figure 1 and Figure 2The other end of the first inner cavity 11a (shown in the X direction) is used to connect with the cigarette rod (not shown in the figure), the first inner cavity 11a and the second inner cavity 10a are connected, and at least form an aerosol channel; the atomization part 30 is arranged in the first inner cavity 11a, the atomization part 30 has an atomization cavity 31, and a heating element 32 is arranged in the atomization cavity 31. The heating element 32 heats the smoke liquid to generate aerosol that flows from the aerosol channel to the inhalation port 13 for the user to inhale; the first opening 21 is arranged on the housing 11 or the mouthpiece 10. Preferably, the first opening 21 is arranged on the mouthpiece 10.

[0043] Among them, reference Figure 1 and Figure 3 and Figure 4 , the cigarette holder 10 and the housing 11 can generate relative movement to open the first opening 21, the first opening 21 is connected to the outside, no smoke liquid flows into the atomization chamber 31, when the user inhales through the product inhalation port 13, the outside air can flow into the aerosol channel through the first opening 21 and then flow out of the product inhalation port 13, forming a first airflow path ( Figure 3 and Figure 4 As shown in C in the figure, the air pressure sensor will not be triggered, thus avoiding starting the heating element 32 and causing dry burning.

[0044] In addition, reference Figure 2 and Figure 5 and Figure 6 , the cigarette holder 10 and the housing 11 can generate relative movement to close the first opening 21, the first opening 21 is not connected to the outside, the smoke liquid flows into the atomization chamber 31, and when the user inhales through the inhalation port 13, the outside air can flow into the aerosol channel through the atomization chamber 31 and then flow out of the inhalation port 13, forming a second airflow path ( Figure 5 and Figure 6 D in the figure), and triggers the air pressure sensor, thereby triggering the circuit to be connected, and the heating element 32 heats the smoke liquid to generate aerosol for the user to inhale. The outside air will not flow into the aerosol channel through the first opening 21.

[0045] Thus, the aerosol generating device 1 of the present invention can prevent the heating element 32 from being triggered by mistake. When not in use, the aerosol generating device 1 forms a first airflow path. Even if inhalation is performed through the product inhalation port 13, the heating element 32 will not work, and at the same time, the smoke liquid will not flow into the atomization chamber 31, thereby preventing leakage. When it is needed to be used, the aerosol generating device 1 forms a second airflow path. Inhalation is performed through the product inhalation port 13, and the smoke liquid flows into the atomization chamber 31. The heating element 32 works to generate aerosol for the user to inhale through the product inhalation port 13, thereby improving the user's inhalation experience.

[0046] In other words, when not in use, the liquid outlet 24 of the liquid storage part 20 is closed. The first opening 21 is in an open state. At this time, when the aerosol generating system is used, the smoke liquid does not flow out. When the smoke is inhaled from the product inhalation port 13, the outside air flows from the first opening 21 to the product inhalation port 13. The pressure is not transmitted to the air pressure sensor, and the air pressure sensor is shielded to avoid starting the heating element 32 and causing dry burning. When in use, the control mouthpiece 10 and the shell 11 produce relative movement, the liquid outlet 24 of the liquid storage part 20 is opened, and the smoke liquid can flow out to the heating element 32 or the oil guide buffer body in the atomization part 30. At the same time, the first opening 21 is shielded by displacement and is in a closed state, and air cannot be taken in from the outside. The air pressure needs to flow from the bottom to the atomization part 30 so that the pressure sensor can sense the air pressure, that is, the air pressure sensor can sense the suction pressure and trigger the circuit to be connected. The air circulation trajectories of the first airflow path and the second airflow path are different, and the effects on the air pressure sensor are also different.

[0047] Preferably, the aerosol generating device 1 of the present invention has a first state and a second state. Figure 1 , Figure 3 and Figure 4 In the first state, the first opening 21 is in an open state, the first opening 21 is connected to the outside, the atomization unit 30 stops working, and no smoke liquid flows into the atomization chamber 31. Figure 2 , Figure 5 and Figure 6 In the second state, the first opening 21 is in a closed state, the first opening 21 is isolated from the outside, the atomization unit 30 is working, and smoke liquid flows into the atomization chamber 31.

[0048] Preferably, the mouthpiece 10 can be moved along the direction ( Figure 1 A) or away from ( Figure 2 The housing 11 is in a direction shown in the B direction) and generates relative movement with the housing 11 to open or close the first opening 21, wherein the distance ( Figure 4 The distance between the heating element 32 and the atomizing chamber 31 is not less than 0.5 mm. This is helpful to prevent the heating element 32 in the atomizing chamber 31 from burning dry. Preferably, when the cigarette holder 10 and the housing 11 move to abut each other, smoke liquid flows into the atomizing chamber 31.

[0049] In this embodiment, the cigarette holder 10 can be moved in a direction toward the housing 11 ( Figure 1 Alternatively, the cigarette holder 10 can move in a direction away from the housing 11 (as shown in the direction A in the figure) to generate relative movement with the housing 11 to close the first opening 21. ... Figure 2The cigarette holder 10 and the housing 11 generate relative movement in the circumferential direction to open or close the first opening 21. However, the relative movement of the cigarette holder 10 and the housing 11 of the present invention is not limited thereto. In other embodiments, the cigarette holder 10 and the housing 11 generate relative movement in the circumferential direction to open or close the first opening 21.

[0050] Preferably, the air intake area of ​​the first airflow path is not less than 50% of the air intake area of ​​the second airflow path. This is advantageous in that when the aerosol generating device 1 has the first airflow path, the air pressure sensor will not feel the pressure and will not be triggered; when the aerosol generating device 1 has the second airflow path, the air pressure needs to flow from the bottom to the atomizing part 30 so that the pressure sensor can feel the air pressure, that is, the air pressure sensor can feel the suction pressure and trigger the circuit to be turned on.

[0051] Continue to refer Figure 1 and Figure 2 , the aerosol generating device 1 of the present invention further includes a second opening 22, which is provided in the housing 11, and the second airflow path includes the outside air flowing into the atomizing chamber 31 from the second opening 22. That is, the mouthpiece 10 and the housing 11 generate relative movement to open the first opening 21, and when the user inhales through the product inhalation port 13, the outside air can flow into the aerosol channel through the first opening 21 and then flow out from the product inhalation port 13, forming a first airflow path. The outside air will not flow into the aerosol channel through the second opening 22. The mouthpiece 10 and the housing 11 generate relative movement to close the first opening 21, and when the user inhales through the product inhalation port 13, the outside air can flow into the aerosol chamber 31 through the second opening 22, and then flow into the aerosol channel from the atomizing chamber 31, and then flow out from the product inhalation port 13, forming a second airflow path. The outside air will not flow into the aerosol channel through the first opening 21.

[0052] That is, when the first opening 21 is in an open state, the user inhales through the product inhalation port 13, the outside air will not flow into the aerosol channel through the second opening 22, no airflow passes through the atomization chamber 31, and the air pressure sensor will not be triggered; when the first opening 21 is in a closed state, the user inhales through the product inhalation port 13, the outside air will not flow into the aerosol channel through the first opening 21, but flow into the atomization chamber 31 through the second opening 22, the air pressure sensor is triggered, the aerosol generated is mixed with the fresh air flowing into the atomization chamber 31, and then flows into the aerosol channel from the atomization chamber 31 for the user to inhale through the product inhalation port 13.

[0053] Preferably, in the direction from the cigarette holder 10 to the housing 11 ( Figure 1The first opening 21 is closer to the inhalation port 13 than the second opening 22. This is beneficial in that when the aerosol generating device 1 has a first airflow path, the outside air will not flow into the atomization chamber 31 through the second opening 22, but will flow into the atomization channel through the first opening 21, so that the air pressure sensor will not feel the pressure and will not be triggered.

[0054] It should be noted that the number, specific position and size of the first openings 21 are not limited, and can satisfy the requirement that the aerosol generating device 1 has a first airflow path and a second airflow path. Figure 7 The cigarette holder 10 of the present invention has an insertion end 14, and the insertion end 14 is movably disposed at one end of the first inner cavity 11a, and the first opening 21 is disposed at the insertion end 14. Figure 7 As shown in FIG. 1 , two first openings 21 are provided on the insertion end 14. When the insertion end 14 of the cigarette holder 10 is moved in a direction toward the housing 11 ( Figure 1 After being inserted into the first inner cavity 11a of the housing 11 (as shown in the direction A in FIG. 1 ), Figure 2 , the first opening 21 on the cigarette holder 10 is shielded, so that the first opening 21 is in a closed state; when the insertion end 14 of the cigarette holder 10 is moved away from the housing 11 ( Figure 2 After relative movement occurs between the first inner cavity 11a of the housing 11 and the first inner cavity 11a of the housing 11, Figure 1 , the first opening 21 on the cigarette holder 10 is exposed, so that the first opening 21 is in an open state.

[0055] Preferably, when the insertion end 14 of the cigarette holder 10 moves relative to the first inner cavity 11a of the outer shell 11 in a direction away from the outer shell 11, the first opening 21 on the cigarette holder 10 is shielded, so that the first opening 21 is in a closed state. When the insertion end 14 of the cigarette holder 10 moves relative to the first inner cavity 11a of the outer shell 11 in a direction toward the outer shell 11, the first opening 21 on the cigarette holder 10 is exposed, so that the first opening 21 is in an open state.

[0056] However, the arrangement of the first opening 21 is not limited thereto, and the first opening 21 is opened or closed when the cigarette holder 10 and the housing 11 move relative to each other, so as to form a first airflow path or a second airflow path. In other embodiments, the first opening 21 is arranged on the housing 11, and when the cigarette holder 10 and the housing 11 move relative to each other, the first opening 21 is opened or closed.

[0057] Continue to refer Figure 3The cigarette holder 10 of the present invention is elastically supported on the housing 11 by the first elastic member 40. During the relative movement between the cigarette holder 10 and the housing 11 to open or close the first opening 21, the first elastic member 40 is compressed or stretched. In this embodiment, the cigarette holder 10 moves relative to the housing 11 in a direction toward the housing 11, and the first elastic member 40 is compressed; the cigarette holder 10 moves relative to the housing 11 in a direction away from the housing 11, and the first elastic member 40 is stretched and reset.

[0058] Preferably, reference Figure 1 , the aerosol generating device 1 is in the initial state, the first elastic member 40 is in the original state and is not compressed, under the elastic force of the first elastic member 40, the mouthpiece 10 is elastically supported on the shell 11, and the first opening 21 is in the open state; when the user needs to inhale the aerosol generating system, the mouthpiece 10 is controlled to move relative to the shell 11 in the direction toward the shell 11, that is, the mouthpiece 10 is pressed, and at this time, the first elastic member 40 is compressed. After the inhalation is completed, the mouthpiece 10 is controlled to move relative to the shell 11 in the direction away from the shell 11, and the first elastic member 40 is reset.

[0059] In addition, reference Figure 2 and Figure 5 , the cigarette holder 10 of the present invention can move in a direction toward the housing 11 until it abuts against one end of the housing 11 to close the first opening 21, and the first elastic member 40 is compressed; Figure 1 and Figure 3 The cigarette holder 10 can move in a direction away from the housing 11 to be separated from the one end of the housing 11 to open the first opening 21, and the first elastic member 40 is reset.

[0060] In addition, one of the ends of the cigarette holder 10 located in the first inner cavity 11a and the inner wall of the first inner cavity 11a is provided with a convex portion, and the other is provided with a concave portion, and the concave portion cooperates with the convex portion to limit the terminal position of the cigarette holder 10 moving in a direction away from the housing 11. In this embodiment, reference Figure 3 , a convex portion 15 is provided at one end of the cigarette holder 10 located in the first inner cavity 11a, and a concave portion 23 is provided on the inner wall of the first inner cavity 11a, and the concave portion 23 cooperates with the convex portion 15. After the cigarette holder 10 moves a certain distance in the direction away from the shell 11, the concave portion 23 and the convex portion 15 abut against each other in the moving direction of the cigarette holder 10, thereby limiting the further movement of the cigarette holder 10. That is, the presence of the concave portion 23 and the convex portion 15 not only enables the cigarette holder 10 to be elastically supported in the shell 11, but also limits the further movement of the cigarette holder 10 when the cigarette holder 10 moves to the terminal position relative to the shell 11, thereby preventing the cigarette holder 10 from slipping out of the first inner cavity 11a of the shell 11.

[0061] refer to Figure 3 The aerosol generating device 1 of the present invention further includes: a liquid storage part 20, in which smoke liquid is stored, and the liquid storage part 20 has a liquid outlet 24. When the mouthpiece 10 and the shell 11 generate relative movement to open the first opening 21, the liquid outlet 24 is closed, and when the mouthpiece 10 and the shell 11 generate relative movement to close the first opening 21, the liquid outlet 24 is opened. That is, when the aerosol generating device 1 is not in use, the smoke liquid will not flow into the atomization part 30, and when it is in use, the smoke liquid flows into the atomization part 30 to prevent leakage. Therefore, the aerosol generating device 1 of the present invention controls the outflow of smoke liquid in the liquid storage part 20 through the relative movement of the shell 11 and the mouthpiece 10.

[0062] Preferably, during the relative movement between the cigarette holder 10 and the housing 11 to open or close the first opening 21, the liquid storage part 20 moves synchronously with the cigarette holder 10. The connection method between the cigarette holder 10 and the liquid storage part 20 is not limited, as long as the synchronous movement can be achieved. Preferably, the cigarette holder 10 and the liquid storage part 20 are connected by a hook and move synchronously when pushed. Further preferably, the cigarette holder 10 is threadedly connected to the liquid storage part 20. Further preferably, the cigarette holder 10 and the liquid storage part 20 are connected by bolts.

[0063] refer to Figure 3 and Figure 8 The aerosol generating device 1 of the present invention further comprises: a first valve body 26, which is inserted into the liquid outlet 24 and moves along the movement direction of the mouthpiece 10 ( Figure 8 The liquid outlet 24 has a first blocking portion 27 and a second blocking portion 28 arranged at intervals, and the second blocking portion 28 is closer to the atomizing portion 30 than the first blocking portion 27; a second elastic member 25 is arranged in the liquid outlet 24, one end of which is connected to the first blocking portion 27, and the other end is connected to the first valve body 26. In this embodiment, the first valve body 26 can move in a direction toward the first blocking portion 27 to open the liquid outlet 24, and the second elastic member 25 is compressed; or, the first valve body 26 can move in a direction away from the first blocking portion 27 until it abuts against the second blocking portion 28 to close the liquid outlet 24, and the second elastic member 25 is reset.

[0064] Preferably, the first valve body 26 moves in the direction toward the first blocking portion 27 to open the liquid outlet 24 by a distance ( Figure 4 Preferably, before the first valve body 26 moves toward the first blocking portion 27 to open the liquid outlet 24, the first valve body 26 moves at least 0.5 mm. This helps prevent the heating element 32 in the atomizing chamber 31 from burning dry.

[0065] In other words, the mouthpiece 10 of the present invention can move in the direction toward the shell 11 until it abuts against one end of the shell 11 to close the first opening 21, and the first elastic member 40 is compressed; at the same time, the first valve body 26 can move in the direction toward the first blocking portion 27 to open the liquid outlet 24, the second elastic member 25 is compressed, the liquid outlet 24 of the liquid storage portion 20 is opened, and the smoke liquid can flow out to the heating element 32 or the oil guide buffer body in the atomization portion 30; the air pressure sensor can sense the suction pressure and trigger the circuit to be connected.

[0066] Alternatively, the mouthpiece 10 can move in a direction away from the shell 11 until it is separated from the one end of the shell 11 to open the first opening 21, and the first elastic member 40 is reset; at the same time, the first valve body 26 can move in a direction away from the first blocking portion 27 until it abuts against the second blocking portion 28 to close the liquid outlet 24, the second elastic member 25 is reset, and the liquid outlet 24 of the liquid storage portion 20 is closed; the pressure is not transmitted to the air pressure sensor, and the air pressure sensor is shielded to avoid starting the heating element 32 and causing dry burning.

[0067] In this embodiment, along the movement direction of the cigarette holder 10, one end of the liquid storage part 20 is fixedly connected to the cigarette holder 10, and the other end is inserted into the atomization part 30. Preferably, the other end of the liquid storage part 20 is inserted into the extension part 33 of the atomization part 30. One end of the first elastic member 40 is connected to the atomization part 30, and the other end is connected to the other end of the liquid storage part 20. Thus, the cigarette holder 10 can move in the direction toward the housing 11 until it abuts against one end of the housing 11, the first elastic member 40 is compressed, the second elastic member 25 is compressed, the cigarette holder 10 can move in the direction away from the housing 11 until it is separated from the one end of the housing 11, the first elastic member 40 is reset, and the second elastic member 25 is reset.

[0068] During the movement of the mouthpiece 10, at least when the mouthpiece 10 abuts against one end of the housing 11, the first valve body 26 abuts against the atomizing part 30. Preferably, before the mouthpiece 10 moves in the direction toward the housing 11 and abuts against one end of the housing 11, the first elastic member 40 is compressed, and the first valve body 26 abuts against the atomizing part 30; as the mouthpiece 10 continues to move in the direction toward the housing 11, the second elastic member 25 is compressed, and the liquid outlet 24 of the liquid storage part 20 opens until the mouthpiece 10 abuts against one end of the housing 11. More preferably, before the mouthpiece 10 moves in a direction toward the shell 11 until it abuts against one end of the shell 11, the first elastic member 40 is compressed, the first valve body 26 does not abut against the atomization part 30, the second elastic member 25 is not compressed, and the liquid outlet 24 of the liquid storage part 20 is closed; when the mouthpiece 10 abuts against one end of the shell 11, the first valve body 26 abuts against the atomization part 30, at which time, the second elastic member 25 is compressed, and the liquid outlet 24 of the liquid storage part 20 is opened.

[0069] Preferably, the first elastic member 40 and the second elastic member 25 are springs.

[0070] It should be noted that the opening or closing of the liquid outlet 24 of the liquid storage part 20 is not limited to this, and any method that can control the closing or opening of the liquid outlet 24 by relative movement between the mouthpiece 10 and the housing 11 is sufficient.

[0071] In this embodiment, reference Figure 8 , the other end of the liquid storage part 20 is provided with a first protrusion 29, and the inner wall of the extension part 33 of the atomization part 30 is provided with a second protrusion 34. After the other end of the liquid storage part 20 moves a certain distance in the direction away from the atomization part 30, the first protrusion 29 and the second protrusion 34 abut against each other in the moving direction of the liquid storage part 20, thereby limiting the other end of the liquid storage part 20 from continuing to move. That is, the existence of the first protrusion 29 and the second protrusion 34 not only enables the mouthpiece 10 to be elastically supported in the housing 11, but also limits the other end of the liquid storage part 20 from continuing to move when the other end of the liquid storage part 20 moves to the terminal position relative to the extension part 33 of the atomization part 30, thereby preventing the other end of the liquid storage part 20 from sliding out of the extension part 33 of the atomization part 30.

[0072] It should be noted that the method of limiting the other end of the liquid storage portion 20 from sliding out of the extension portion 33 of the atomization portion 30 is not limited to this. Preferably, one of the other end of the liquid storage portion 20 and the extension portion 33 of the atomization portion 30 is provided with a recessed portion, and the other is provided with a convex portion, and the recessed portion and the convex portion cooperate to limit the terminal position of the other end of the liquid storage portion 20 moving in a direction away from the atomization portion 30.

[0073] Preferably, when the aerosol generating device 1 is not in use, under the action of the first elastic member 40, the combination of the mouthpiece 10 and the liquid storage part 20 is in a state away from the heating element 32 of the atomizing part 30, the first opening 21 is exposed and communicated with the outside air, the first valve body 26 closes the liquid outlet 24 of the liquid storage part 20, and the smoke liquid does not flow out. When the liquid storage part 20 is in use, the first opening 21 is closed, the combination of the mouthpiece 10 and the liquid storage part 20 is in a state close to the heating element 32 of the atomizing part 30, the liquid outlet 24 of the liquid storage part 20 is open, and the smoke liquid can flow out to the heating element 32 or the oil guide buffer body in the atomizing part 30.

[0074] In addition, preferably, the liquid storage part 20 uses food-grade materials, such as PC, PLA, PEEK and other materials. The first valve body 26 is made of high temperature resistant and stable materials, such as metal, PEEK, ceramic and other materials. The heating element 32 is preferably a ceramic atomization core, which is made of porous ceramic material and has a certain oil storage capacity. A heating wire or a printed circuit is embedded inside, and the heating wire is close to the bottom surface of the ceramic body. Preferably, the heating wire can be made of metal materials such as nickel-cadmium alloy, nickel, stainless steel, etc., or it can be a breathable heating coating. Preferably, the outer layer of the heating element is fixed with a silicone jacket, which can also play a heat insulating role. Preferably, the aerosol channel airway surrounds the liquid storage part 20. Preferably, the outer shell 11 is made of plastic material and is made of materials such as PC, PEEK, PI and other materials with stable performance.

[0075] The present invention also provides an aerosol generating system, comprising: the aerosol generating device 1 described in any of the above embodiments; a cigarette rod (not shown in the figure), connected to the aerosol generating device 1, and a power supply (not shown in the figure) is provided in the cigarette rod, and the power supply is used to supply power to the atomization part 30; an air pressure sensor (not shown in the figure), which is arranged in the cigarette rod and is used to control the power supply to stop supplying power to the atomization part 30 when the first airflow path exists in the aerosol generating device 1, and control the power supply to supply power to the atomization part 30 when the second airflow path exists in the aerosol generating device 1.

[0076] The present invention also provides a control method for an aerosol generating system, comprising: detecting the airflow path of the aerosol generating system described in the above embodiment; when it is detected that the aerosol generating device 1 has the first airflow path, controlling the power supply to stop supplying power to the atomization part 30; when it is detected that the aerosol generating device 1 has the second airflow path, controlling the power supply to supply power to the atomization part 30.

[0077] Therefore, the aerosol generating system of the present invention can prevent the heating element 32 from being triggered by mistake, thereby preventing dry burning, and reduces the risk of users using the aerosol generating system.

[0078] refer to Figure 1 and Figure 2 Combined with Fig. 9 and Fig.10 The present invention also provides an aerosol generating device 1, which comprises a housing 11, the housing 11 having a first inner cavity 11a; a mouthpiece 10, having a second inner cavity 10a and a suction port 13, the mouthpiece 10 being movably disposed at one end of the first inner cavity 11a, and the extension direction of the mouthpiece 10 ( Figure 1 and Figure 2 The other end of the first inner cavity 11a is connected to the cigarette rod (not shown in the figure), the first inner cavity 11a is connected to the second inner cavity 10a, and at least forms an aerosol channel; the atomization part 30 is arranged in the first inner cavity 11a, the atomization part 30 has an atomization cavity 31, and a heating element 32 is arranged in the atomization cavity 31. The heating element 32 heats the smoke liquid to generate aerosol that flows from the aerosol channel to the suction port 13 for the user to inhale; the liquid storage part 20, the liquid storage part 20 stores the smoke liquid, the liquid storage part 20 is connected to the cigarette holder 10, the liquid storage part 20 has a liquid outlet 24 and an air inlet 60, and the aerosol channel is arranged around the liquid storage part 20.

[0079] Preferably, the aerosol generating device 1 of the present invention has a first state and a second state. In the first state, the air inlet 60 and the liquid outlet 24 are both in a closed state; in the second state, the air inlet 60 and the liquid outlet 24 are both in an open state; in the process of switching from the first state to the second state, the mouthpiece 10 and the shell 11 can produce relative movement so that at least one of the air inlet 60 and the liquid outlet 24 is in an open state; or, the mouthpiece 10 and the shell 11 can produce relative movement, and the air inlet 60 and the liquid outlet 24 are both in a closed state. Preferably, the first state of the aerosol generating device 1 of this embodiment corresponds to the first state of the aforementioned embodiment, and the second state of the aerosol generating device 11 of this embodiment corresponds to the second state of the aforementioned embodiment. Preferably, the liquid outlet 24 and the air inlet 60 are in the direction of movement of the aerosol generating device 1 ( Figure 1 and Figure 2 The X direction is shown in the figure.

[0080] Thus, when not in use (first state), for example, in a low pressure environment, since the air inlet 60 and the liquid outlet 24 on the liquid storage part 20 are in a closed state, the inside of the liquid storage part 20 is in a closed state and will not leak. When in use, the mouthpiece 10 and the housing 11 are controlled to produce relative movement to switch the aerosol generating device 1 from the first state to the second state. In the second state, the air inlet 60 and the liquid outlet 24 of the liquid storage part 20 are in an open state, and the air inlet 60 is connected to the outside air. Part of the volume of the liquid flowing out of the liquid storage part 20 can be replenished by air in time, and the gas exchange between the inside of the liquid storage part 20 and the outside can be achieved, and the air pressure balance is maintained without forming a negative pressure. Otherwise, after the smoke liquid in the liquid storage part 20 flows out, negative pressure is generated, and the smoke liquid flows out slowly, causing the problem of dry burning.

[0081] It should be noted that, in the present embodiment, during the process of the aerosol generating device 1 switching from the first state to the second state, the opening or closing of the liquid outlet 24 and the air inlet 60 is not restricted, and the opening sequence of the liquid outlet 24 and the air inlet 60 is not restricted. Preferably, during the process of switching from the first state to the second state, after the liquid outlet 24 is in the open state, the air inlet 60 is in the open state. More preferably, during the process of switching from the first state to the second state, after the air inlet 60 is in the open state, the liquid outlet 24 is in the open state. Further preferably, during the process of switching from the first state to the second state, while the air inlet 60 is in the open state, the liquid outlet 24 is also in the open state. Also preferably, during the process of switching from the first state to the second state, one of the air inlet 60 and the liquid outlet 24 is in the open state, and the other is in the closed state. More preferably, during the process of switching from the first state to the second state, both the air inlet 60 and the liquid outlet 24 are in the closed state.

[0082] Preferably, the mouthpiece 10 can be moved along the direction ( Figure 1 A) or away from ( Figure 2 The direction of the housing 11 (as shown in the direction B in the figure) generates relative movement with the housing 11, so that at least one of the air inlet 60 and the liquid outlet 24 is in an open state, wherein the distance ( Fig. 9 This is helpful to prevent the heating element 32 in the atomizing chamber 31 from burning dry and to prevent negative pressure from being generated in the liquid storage part 20. In other embodiments, the cigarette holder 10 and the housing 11 move relative to each other in the circumferential direction to open or close the air inlet 60 and the liquid outlet 24.

[0083] Preferably, when the cigarette holder 10 and the shell 11 move to abut each other, the air inlet 60 is in an open state, the liquid outlet 24 is in an open state, and the smoke liquid flows into the atomization chamber 31. More preferably, before the cigarette holder 10 and the shell 11 move to abut each other, the cigarette holder 10 and the shell 11 generate relative movement, the air inlet 60 is in an open state, and the liquid inlet is in a closed state; the cigarette holder 10 and the shell 11 continue to generate relative movement, and when the cigarette holder 10 and the shell 11 move to abut each other, the air inlet 60 is in an open state, the liquid outlet 24 is in an open state, and the smoke liquid flows into the atomization chamber 31. Further preferably, before the cigarette holder 10 and the shell 11 move to abut each other, the cigarette holder 10 and the shell 11 generate relative movement, the liquid inlet is in an open state, and the air inlet 60 is in a closed state; the cigarette holder 10 and the shell 11 continue to generate relative movement, and when the cigarette holder 10 and the shell 11 move to abut each other, the air inlet 60 is in an open state, the liquid outlet 24 is in an open state, and the smoke liquid flows into the atomization chamber 31.

[0084] Preferably, in the process of switching from the first state to the second state, the cigarette holder 10 of the present invention moves a first stroke, the liquid outlet 24 is in an open state, and the air inlet 60 is in a closed state; the cigarette holder 10 of the present invention continues to move a second stroke, the liquid outlet 24 is in an open state, and the air inlet 60 is in an open state. More preferably, in the process of switching from the first state to the second state, the cigarette holder 10 of the present invention moves a first stroke, the air inlet 60 is in an open state, and the liquid outlet 24 is in a closed state; the cigarette holder 10 of the present invention continues to move a second stroke, the liquid outlet 24 is in an open state, and the air inlet 60 is in an open state.

[0085] Preferably, in the first state and the second state, the mouthpiece 10 and the housing 11 remain relatively still. More preferably, in the process of switching from the first state to the second state, in the first stroke, the mouthpiece 10 generates relative movement relative to the housing 11, and also generates relative movement relative to the liquid storage part 20, and the liquid storage part 20 and the housing 11 remain relatively still, and in the second stroke, the mouthpiece 10 generates relative movement relative to the housing 11, and the mouthpiece 10 and the liquid storage part 20 remain relatively still, so as to achieve synchronous movement.

[0086] Preferably, after the cigarette holder 10 moves the first distance relative to the housing 11, and then continues to move the second distance, the cigarette holder 10 and one end of the housing 11 abut against each other, and the first distance is smaller than the second distance. Preferably, the sum of the first distance and the second distance is not less than 0.5 mm. Preferably, the movement distance of the first stroke corresponds to the first distance, and the movement distance of the second stroke corresponds to the second distance.

[0087] refer to Figures 8 to 10 , the mouthpiece 10 in the aerosol generating device 1 of the present invention is elastically supported on the housing 11 by the first elastic member 40. During the relative movement between the mouthpiece 10 and the housing 11, the first elastic member 40 is compressed or stretched. In this embodiment, the mouthpiece 10 moves relative to the housing 11 in a direction toward the housing 11, and the first elastic member 40 is compressed; the mouthpiece 10 moves relative to the housing 11 in a direction away from the housing 11, and the first elastic member 40 is stretched and reset. Preferably, refer to Figure 1 , the aerosol generating device 1 is in the initial state (i.e., the first state), the first elastic member 40 is in the original state and is not compressed, and under the elastic force of the first elastic member 40, the mouthpiece 10 is elastically supported on the shell 11; when the user needs to inhale the aerosol generating system, the mouthpiece 10 is controlled to move relative to the shell 11 in the direction toward the shell 11, that is, the mouthpiece 10 is pressed to switch from the first state to the second state, at which time the first elastic member 40 is compressed. After the inhalation is completed, the mouthpiece 10 is controlled to move relative to the shell 11 in the direction away from the shell 11, and the first elastic member 40 is reset.

[0088] In addition, one of the ends of the cigarette holder 10 located in the first inner cavity 11a and the inner wall of the first inner cavity 11a is provided with a convex portion, and the other is provided with a concave portion, and the concave portion cooperates with the convex portion to limit the terminal position of the cigarette holder 10 moving in a direction away from the housing 11. In this embodiment, reference Figure 3 , Fig. 9 and Fig.10 , a convex portion 15 is provided at one end of the cigarette holder 10 located in the first inner cavity 11a, and a concave portion 23 is provided on the inner wall of the first inner cavity 11a, and the concave portion 23 cooperates with the convex portion 15. After the cigarette holder 10 moves a certain distance in the direction away from the shell 11, the concave portion 23 and the convex portion 15 abut against each other in the moving direction of the cigarette holder 10, thereby limiting the further movement of the cigarette holder 10. That is, the presence of the concave portion 23 and the convex portion 15 not only enables the cigarette holder 10 to be elastically supported in the shell 11, but also limits the further movement of the cigarette holder 10 when the cigarette holder 10 moves to the terminal position relative to the shell 11, thereby preventing the cigarette holder 10 from slipping out of the first inner cavity 11a of the shell 11.

[0089] refer to Figures 8 to 10The aerosol generating device 1 of the present invention further includes: a first valve body 26, which is inserted into the liquid outlet 24, and the first valve body 26 is elastically supported in the liquid outlet 24 by a second elastic member 25. During the relative movement of the mouthpiece 10 and the shell 11, the first valve body 26 can move relative to the liquid outlet 24 to make the liquid outlet 24 in an open state or a closed state; a second valve body 50, which is inserted into the air inlet 60, and the second valve body 50 is elastically supported in the air inlet 60 by a third elastic member 62. During the relative movement of the mouthpiece 10 and the shell 11, the second valve body 50 can move relative to the air inlet 60 to make the air inlet 60 in an open state or a closed state.

[0090] Preferably, along the movement direction of the cigarette holder 10 ( Figure 8 The liquid outlet 24 has a first blocking portion 27 and a second blocking portion 28 arranged at intervals, and the second blocking portion 28 is closer to the atomizing portion 30 arranged in the first inner cavity 11a than the first blocking portion 27; the second elastic member 25 is arranged in the liquid outlet 24, one end of which is connected to the first blocking portion 27, and the other end is connected to the first valve body 26. In this embodiment, the first valve body 26 can move in a direction toward the first blocking portion 27 to open the liquid outlet 24, and the second elastic member 25 is compressed; or, the first valve body 26 can move in a direction away from the first blocking portion 27 until it abuts against the second blocking portion 28 to close the liquid outlet 24, and the second elastic member 25 is reset.

[0091] Preferably, the first valve body 26 moves in the direction toward the first blocking portion 27 to open the liquid outlet 24 by a distance ( Fig. 9 Preferably, before the first valve body 26 moves toward the first blocking portion 27 to open the liquid outlet 24, the first valve body 26 moves at least 0.5 mm. This helps prevent the heating element 32 in the atomizing chamber 31 from burning dry.

[0092] In other words, the cigarette holder 10 of the present invention can move in the direction toward the housing 11, the first valve body 26 can move in the direction toward the first blocking portion 27 to open the liquid outlet 24, the second elastic member 25 is compressed, the liquid outlet 24 of the liquid storage portion 20 is opened, and the smoke liquid can flow out to the heating element 32 or the oil guide buffer body in the atomization portion 30. Alternatively, the cigarette holder 10 can move in the direction away from the housing 11, the first valve body 26 can move in the direction away from the first blocking portion 27 until it abuts against the second blocking portion 28 to close the liquid outlet 24, the second elastic member 25 is reset, and the liquid outlet 24 of the liquid storage portion 20 is closed.

[0093] Preferably, reference Fig. 9 and Fig.10 , along the movement direction of the mouthpiece 10, the second valve body 50 has a first end 51 and a second end 52, the first end 51 is located in the liquid storage part 20, and the second end 52 is inserted in the air inlet 60; the third elastic member 62 is arranged in the air inlet 60, one end of which is connected to the second end 52, and the other end is connected to the air inlet 60. In this embodiment, the first end 51 can be moved in the direction toward the liquid storage part 20 ( Figure 1 Alternatively, the first end 51 can move in a direction away from the liquid storage portion 20 (in the direction A) to separate from the air inlet 60 to open the air inlet 60, and the third elastic member 62 is compressed; Figure 2 The third elastic member 62 moves in the direction B (as shown in the middle) until it abuts against the air inlet 60 to close the air inlet 60, and the third elastic member 62 is reset.

[0094] Continue to refer Fig. 9 and Fig.10 In this embodiment, the liquid storage part 20 has an air inlet end 61, and the air inlet 60 is arranged at the air inlet end 61. Along the movement direction of the mouthpiece 10, the air inlet end 61 of the liquid storage part 20 is connected to the mouthpiece 10, and the other end of the liquid storage part 20 opposite to the air inlet end 61 is inserted into the atomization part 30. Preferably, the other end of the liquid storage part 20 is inserted into the extension part 33 of the atomization part 30. One end of the first elastic member 40 is connected to the atomization part 30, and the other end is connected to the other end of the liquid storage part 20. In this embodiment, the mouthpiece 10 can move in the direction toward the housing 11 until it abuts against one end of the housing 11, and the first elastic member 40, the second elastic member 25 and the third elastic member 62 are compressed. The mouthpiece 10 can move in the direction away from the housing 11 until it is separated from the one end of the housing 11, and the first elastic member 40, the second elastic member 25 and the third elastic member 62 are reset.

[0095] Preferably, along the movement direction of the mouthpiece 10, in the first state, the second valve body 50 is spaced from the mouthpiece 10, and in the second state, the second valve body 50 abuts against the mouthpiece 10. In other words, in the process of switching from the first state to the second state, in the initial state, before the mouthpiece 10 moves relative to the housing 11, the mouthpiece 10 will not abut against the second valve body 50; thereafter, the mouthpiece 10 moves relative to the housing 11, for example, after the mouthpiece 10 moves relative to the housing 11 for the first stroke, the mouthpiece 10 abuts against the second valve body 50, the third elastic member 62 is compressed, the second valve body 50 moves toward the liquid storage portion 20, and the first end 51 of the second valve body 50 moves in the direction toward the liquid storage portion 20 until it is separated from the air inlet 60, and the air inlet 60 is in an open state. After the mouthpiece 10 continues to move relative to the housing 11 for the second stroke, the liquid outlet 24 is in an open state.

[0096] Preferably, during this process, the liquid storage part 20 remains relatively still. After the air inlet 60 is in the open state, the mouthpiece 10 continues to move relative to the housing 11, the mouthpiece 10 and the liquid storage part 20 move synchronously, the first elastic member 40 is compressed, and preferably, the mouthpiece 10 abuts against the air inlet end 61; as the mouthpiece 10 continues to move relative to the housing 11, the first valve body 26 moves toward the direction of the liquid storage part 20, the second elastic member 25 is compressed, and the liquid outlet 24 of the liquid storage part 20 opens.

[0097] That is, in this embodiment, after the mouthpiece 10 abuts against the second valve body 50 to open the air inlet 60, it continues to move to open the liquid outlet 24. In other embodiments, after the mouthpiece 10 moves a certain distance relative to the housing 11, it first opens the liquid outlet 24, and then continues to move and abuts against the second valve body 50 to open the air inlet 60.

[0098] Preferably, reference Fig. 9 and Fig.10 , the surface of the air inlet end 61 facing the first end 51 is a concave surface, and the surface of the first end 51 facing the air inlet end 61 is a convex surface, and the convex surface matches the concave surface. In the first state, under the elastic action of the third elastic member 62, the convex surface of the second valve body 50 fits with the concave surface of the air inlet end 61, and the air inlet 60 is in a closed state. In the process of switching from the first state to the second state, the mouthpiece 10 moves relative to the shell 11. Preferably, the mouthpiece 10 moves relative to the shell 11 in a direction toward the shell 11, the mouthpiece 10 and the second valve body 50 are against each other, the third elastic member 62 is compressed, the second valve body 50 moves toward the liquid storage part 20, the convex surface of the second valve body 50 is separated from the concave surface of the air inlet end 61, and the air inlet 60 is in an open state.

[0099] It should be noted that the cooperation between the concave surface and the convex surface can, on the one hand, prevent liquid leakage. For example, in a low-pressure environment, the concave surface and the convex surface fit tightly together, and the air inlet 60 is in a closed state. On the other hand, when the second valve body 50 is tilted, the convex surface moves along the concave surface to align the second valve body 50, which is beneficial to the stability of the movement of the second valve body 50. The convex surface can move along the concave surface until they fit together, closing the air inlet 60 and preventing liquid leakage.

[0100] Preferably, in the first state and the second state, the second valve body 50 abuts against the cigarette holder 10. In the first state, the second valve body 50 abuts against the cigarette holder 10, and when the cigarette holder 10 starts to move relative to the housing 11, the air inlet 60 is opened.

[0101] In addition, in this embodiment, in the first state, the second valve body 50 is spaced apart from the mouthpiece 10. In the initial state, before the mouthpiece 10 moves relative to the housing 11, the mouthpiece 10 does not abut against the second valve body 50; thereafter, the mouthpiece 10 moves relative to the housing 11, the mouthpiece 10 abuts against the second valve body 50, and the air inlet 60 is in an open state. In this way, when the aerosol generating device 1 is in the first state, the air inlet 60 is in a closed state, and the liquid storage part 20 is not connected to the outside, which effectively prevents the liquid storage part 20 from leaking.

[0102] Preferably, the mouthpiece 10 is movably connected to the air inlet end 61, and after being able to move relative to the air inlet end 61 for a set distance in a direction toward the housing 11, the liquid storage portion 20 moves synchronously with the mouthpiece 10. In the initial stage of switching from the first state to the second state, the mouthpiece 10 moves relative to the housing 11, the mouthpiece 10 does not abut against the air inlet end 61, and is movably connected, so that the liquid storage portion 20 remains relatively stationary; the mouthpiece 10 continues to move relative to the housing 11, the mouthpiece 10 abuts against the air inlet end 61, the mouthpiece 10 and the liquid storage portion 20 move synchronously, and the first elastic member 40 is compressed.

[0103] refer to Fig. 9 , along the movement direction of the cigarette holder 101 ( Figure 8 The air inlet end 61 is provided with a third blocking portion 63, and the mouthpiece 10 is provided with a fourth blocking portion 64. The third blocking portion 63 and the fourth blocking portion 64 are arranged at intervals, and the fourth blocking portion 64 is closer to the liquid storage portion 20 than the third blocking portion 63. In the first state, the third blocking portion 63 and the fourth blocking portion 64 are against each other; Fig.10In the process of switching from the first state to the second state, the mouthpiece 10 moves relative to the housing 11, the third blocking portion 63 and the fourth blocking portion 64 separate, and the fourth blocking portion 64 moves in the direction toward the liquid storage portion 20. It should be noted that the movable connection between the air inlet end 61 and the mouthpiece 10 is not limited to this, and the movable connection can be achieved so that the mouthpiece 10 and the air inlet end 61 can move relative to each other.

[0104] Preferably, after the mouthpiece 10 moves a first distance relative to the shell 11, the liquid outlet 24 is in an open state, and after the mouthpiece 10 moves a second distance relative to the shell 11, the air inlet 60 is in an open state, and the sum of the first distance and the second distance is not less than 0.5 mm.

[0105] Preferably, during the movement of the mouthpiece 10, at least when the mouthpiece 10 abuts against one end of the housing 11, the first valve body 26 abuts against the atomizing portion 30. Preferably, before the mouthpiece 10 moves in the direction toward the housing 11 and abuts against one end of the housing 11, the first elastic member 40 is compressed, and the first valve body 26 abuts against the atomizing portion 30; as the mouthpiece 10 continues to move in the direction toward the housing 11, the second elastic member 25 is compressed, and the liquid outlet 24 of the liquid storage portion 20 opens until the mouthpiece 10 abuts against one end of the housing 11.

[0106] More preferably, before the mouthpiece 10 moves in a direction toward the shell 11 until it abuts against one end of the shell 11, the first elastic member 40 is compressed, the first valve body 26 does not abut against the atomization part 30, the second elastic member 25 is not compressed, and the liquid outlet 24 of the liquid storage part 20 is closed; when the mouthpiece 10 abuts against one end of the shell 11, the first valve body 26 abuts against the atomization part 30, at which time, the second elastic member 25 is compressed, and the liquid outlet 24 of the liquid storage part 20 is opened.

[0107] Preferably, the first elastic member 40 , the second elastic member 25 and the third elastic member 62 are springs.

[0108] It should be noted that the opening or closing of the liquid outlet 24 of the liquid storage part 20 is not limited to this, and any method that can control the closing or opening of the liquid outlet 24 by relative movement between the mouthpiece 10 and the housing 11 is sufficient.

[0109] In this embodiment, reference Figures 8 to 10, the other end of the liquid storage part 20 is provided with a first protrusion 29, and the inner wall of the extension part 33 of the atomization part 30 is provided with a second protrusion 34. After the other end of the liquid storage part 20 moves a certain distance in the direction away from the atomization part 30, the first protrusion 29 and the second protrusion 34 abut against each other in the moving direction of the liquid storage part 20, thereby limiting the other end of the liquid storage part 20 from continuing to move. That is, the existence of the first protrusion 29 and the second protrusion 34 not only enables the mouthpiece 10 to be elastically supported in the housing 11, but also limits the other end of the liquid storage part 20 from continuing to move when the other end of the liquid storage part 20 moves to the terminal position relative to the extension part 33 of the atomization part 30, thereby preventing the other end of the liquid storage part 20 from sliding out of the extension part 33 of the atomization part 30.

[0110] It should be noted that the method of limiting the other end of the liquid storage portion 20 from sliding out of the extension portion 33 of the atomization portion 30 is not limited to this. Preferably, one of the other end of the liquid storage portion 20 and the extension portion 33 of the atomization portion 30 is provided with a recessed portion, and the other is provided with a convex portion, and the recessed portion and the convex portion cooperate to limit the terminal position of the other end of the liquid storage portion 20 moving in a direction away from the atomization portion 30.

[0111] The present invention also provides an aerosol generating system, comprising: the aerosol generating device 1 described in any of the above embodiments; a cigarette rod (not shown), connected to the aerosol generating device 1, and a power supply (not shown) is provided in the cigarette rod, and the power supply is used to supply power to the atomization part 30.

[0112] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An aerosol generating device, characterized in that: include: A housing having a first inner cavity; A mouthpiece having a second inner cavity, wherein the mouthpiece is movably disposed at one end of the first inner cavity, and the first inner cavity is connected to the second inner cavity; A liquid storage part, connected to the cigarette holder, having an air inlet and a liquid outlet; an atomizing unit, disposed in the first inner cavity, the atomizing unit having an atomizing cavity, and a heating element disposed in the atomizing cavity; In the first state, the air inlet and the liquid outlet are both in a closed state; In the second state, the air inlet and the liquid outlet are both in an open state; When the aerosol generating device is not in use, the aerosol generating device is in the first state, and when the aerosol generating device is in use, the aerosol generating device is in the second state, and the heating element heats the smoke liquid and generates aerosol; In the process of switching from the first state to the second state, the cigarette holder and the housing can generate relative movement so that at least one of the air inlet and the liquid outlet is in an open state; Alternatively, the cigarette holder and the housing can generate relative movement, and the air inlet and the liquid outlet are both in a closed state.

2. The aerosol generating device according to claim 1, characterized in that In the process of switching from the first state to the second state, after the liquid outlet is in the open state, the air inlet is in the open state.

3. The aerosol generating device according to claim 1, characterized in that In the process of switching from the first state to the second state, after the air inlet is in the open state, the liquid outlet is in the open state.

4. The aerosol generating device according to claim 1, characterized in that The mouthpiece can move relative to the shell in a direction toward or away from the shell so that at least one of the air inlet and the liquid outlet is in an open state, wherein the distance over which the mouthpiece and the shell move relative to each other is not less than 0.5 mm.

5. The aerosol generating device according to claim 1, characterized in that In the first state and the second state, the mouthpiece and the housing remain relatively still.

6. The aerosol generating device according to claim 1, characterized in that The cigarette holder is elastically supported on the shell by a first elastic member, and the first elastic member is compressed or stretched during the relative movement between the cigarette holder and the shell.

7. The aerosol generating device according to claim 6, characterized in that Also includes: a first valve body, inserted in the liquid outlet, the first valve body being elastically supported in the liquid outlet by a second elastic member, and the first valve body being able to move relative to the liquid outlet during the relative movement between the cigarette holder and the housing, so that the liquid outlet is in an open state or a closed state; A second valve body is inserted into the air inlet. The second valve body is elastically supported in the air inlet by a third elastic member. During the relative movement between the cigarette holder and the shell, the second valve body can move relative to the air inlet to place the air inlet in an open state or a closed state.

8. The aerosol generating device according to claim 7, characterized in that Along the movement direction of the cigarette holder, the liquid outlet has a first blocking portion and a second blocking portion arranged at intervals, and the second blocking portion is closer to the atomization portion arranged in the first inner cavity than the first blocking portion; A second elastic member is disposed in the liquid outlet, one end of the second elastic member is connected to the first blocking portion, and the other end of the second elastic member is connected to the first valve body; The first valve body can move in a direction toward the first blocking portion to open the liquid outlet, and the second elastic member is compressed; or, the first valve body can move in a direction away from the first blocking portion until it abuts against the second blocking portion to close the liquid outlet, and the second elastic member is reset.

9. The aerosol generating device according to claim 8, characterized in that Along the movement direction of the cigarette holder, the second valve body has a first end and a second end, the first end is located in the liquid storage portion, and the second end is inserted in the air inlet; The third elastic member is disposed in the air inlet, one end of the third elastic member is connected to the second end, and the other end is connected to the air inlet; The first end can move in a direction toward the liquid storage portion until it is separated from the air inlet to open the air inlet, and the third elastic member is compressed; or, the first end can move in a direction away from the liquid storage portion until it is against the air inlet to close the air inlet, and the third elastic member is reset.

10. The aerosol generating device according to claim 9, characterized in that The liquid storage part has an air inlet end, the air inlet port is arranged at the air inlet end, along the movement direction of the cigarette holder, the air inlet end of the liquid storage part is connected to the cigarette holder, the other end of the liquid storage part opposite to the air inlet end is inserted into the atomization part, one end of the first elastic member is connected to the atomization part, and the other end is connected to the other end of the liquid storage part; The cigarette holder can move in a direction toward the shell until it abuts against one end of the shell, and the first elastic member, the second elastic member and the third elastic member are compressed. The cigarette holder can move in a direction away from the shell until it is separated from the one end of the shell, and the first elastic member, the second elastic member and the third elastic member are reset.

11. The aerosol generating device according to claim 10, characterized in that Along the movement direction of the cigarette holder, in the first state, the second valve body is spaced apart from the cigarette holder, and in the second state, the second valve body abuts against the cigarette holder; or, in the first state and the second state, the second valve body abuts against the cigarette holder.

12. The aerosol generating device according to claim 11, characterized in that The cigarette holder is movably connected to the air inlet end, and after being moved relative to the air inlet end for a set distance in a direction toward the housing, the liquid storage portion and the cigarette holder move synchronously.

13. The aerosol generating device according to claim 11, characterized in that After the mouthpiece moves a first distance relative to the shell, the liquid outlet is in an open state, and after the mouthpiece moves a second distance relative to the shell, the air inlet is in an open state, and the sum of the first distance and the second distance is not less than 0.5 mm.

14. The aerosol generating device according to claim 13, characterized in that After the cigarette holder moves the first distance relative to the housing, and then continues to move the second distance, the cigarette holder and one end of the housing abut against each other, and the first distance is smaller than the second distance.

15. The aerosol generating device according to claim 14, characterized in that At least when the cigarette holder abuts against one end of the shell, the first valve body abuts against the atomizing portion.

16. The aerosol generating device according to claim 10, characterized in that The surface of the air inlet end facing the first end is a concave surface, and the surface of the first end facing the air inlet end is a convex surface, and the convex surface matches the concave surface.

17. An aerosol generating system, characterized in that: include: An aerosol generating device as claimed in any one of claims 1 to 16; The cigarette rod is connected to the aerosol generating device. A power source is arranged inside the cigarette rod, and the power source is used to supply power to the atomizing part of the aerosol generating device.

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