Aerosol-generating device

Abstract

The utility model relates to the technical field of electronic atomization, and discloses an aerosol generating device which comprises a shell provided with a mounting hole for mounting an aerosol generating substrate; the heating piece is arranged in the shell and is used for heating the aerosol generating substrate; the fixing sleeve is arranged in the shell and arranged outside the heating piece in a sleeving mode. A first limiting part and a second limiting part are arranged on the fixing sleeve, and the pressing assembly comprises a driving piece and a moving piece; the driving piece penetrates through the fixing sleeve and is connected with the moving piece, and the driving piece drives the moving piece to be switched between a first limiting position and a second limiting position; the inductive switch is electrically connected with the heating piece; at the first limiting position, the moving piece is in limiting fit with the first limiting part, the inductive switch is turned off, and the heating piece does not heat; at the second limiting position, the moving part is in limiting fit with the second limiting part, the inductive switch is turned on, and the heating part performs heating. And the moving part is matched with the first limiting part and the second limiting part, so that the state of the heating part can be accurately switched, and the usability and the reliability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic atomization, and particularly relates to an aerosol generating device. Background Art

[0002] An aerosol generating device is an electronic device for heating but not burning an aerosol generating substrate (processed plant leaf products). The heating device heats the aerosol generating substrate to a temperature at which aerosol can be generated but not burned, enabling the aerosol generating substrate to generate the aerosol required by the user without combustion.

[0003] In order to automatically respond to the insertion of the aerosol generating substrate and start the heating process, the currently adopted technology is the capacitance detection method. However, this method is extremely susceptible to the influence of surrounding environmental factors, so misjudgment or missed judgment of the insertion of the cigarette stick may occur, thereby affecting the user experience and the reliability of the product. Summary of the Utility Model

[0004] In view of this, the utility model provides an aerosol generating device to solve the problem of poor reliability of the aerosol generating device in the related art.

[0005] The utility model provides an aerosol generating device, comprising:

[0006] A housing provided with a mounting hole adapted to mount an aerosol generating substrate;

[0007] A heating element disposed in the housing and adapted to heat the aerosol generating substrate;

[0008] A fixing sleeve disposed in the housing and sleeved outside the heating element; the fixing sleeve is provided with a first limiting portion and a second limiting portion;

[0009] A pressing assembly disposed in the fixing sleeve, the pressing assembly comprising a driving member and a moving member; the driving member passes through the fixing sleeve and is connected to the moving member, and the driving member is adapted to drive the moving member to switch between a first limiting position and a second limiting position;

[0010] An induction switch electrically connected to the heating element;

[0011] In the first limiting position, the moving member is in limiting cooperation with the first limiting portion, the induction switch is closed and the heating element does not heat; in the second limiting position, the moving member is in limiting cooperation with the second limiting portion, the induction switch is turned on and the heating element heats.

[0012] Beneficial effects: By providing a pressing assembly within the fixing sleeve in the present utility model, the pressing assembly includes a driving member and a moving member. The fixing sleeve is provided with a first limiting portion and a second limiting portion, and the driving member can drive the moving member to switch between a first limiting position and a second limiting position. After the aerosol generating substrate is installed into the installation hole, pressing the aerosol generating substrate causes the driving member to drive the moving member to be in limiting cooperation with the second limiting portion. At this time, the heating member starts to heat the aerosol generating substrate. Pressing the aerosol generating substrate again causes the driving member to drive the moving member to leave the second limiting portion and lock to the first limiting portion. At this time, the heating member stops heating the aerosol generating substrate. Thus, by using the aerosol generating substrate to press the driving member to change the relative positional relationship between the moving member and the first limiting portion and the second limiting portion, precise switching between the heating state and the non-heating state of the heating member can be achieved, improving the usability and reliability of the device. In addition, compared with a contact physical switch, an inductive switch is adopted, which can avoid physical contact, reduce maintenance costs, and extend the service life.

[0013] In an alternative embodiment, the first limiting portion is a first limiting groove, the second limiting portion is a second limiting groove, and the first limiting groove and the second limiting groove are provided on the inner wall of the fixing sleeve and extend from the same end of the fixing sleeve to the other end; along the axial direction of the fixing sleeve, the length of the first limiting groove is greater than the length of the second limiting groove.

[0014] Beneficial effects: By making the length of the first limiting groove greater than the length of the second limiting groove in the present utility model, the moving member can be locked at different positions of the fixing sleeve, that is, the length of the aerosol generating substrate entering the interior of the housing through the installation hole can be changed. Specifically, when the moving member is in the first limiting position, the portion of the aerosol generating substrate outside the installation hole is relatively long, so that the user can more easily and quickly complete the operation of taking and placing the aerosol generating substrate, simplifying the replacement process of the aerosol generating substrate and improving the convenience of replacement. When the moving member is in the second limiting position, the aerosol generating substrate can extend more into the housing, increasing the contact area between the aerosol generating substrate and the heating member and improving the heating efficiency.

[0015] In an alternative embodiment, a positioning protrusion is provided on the circumferential side of the driving member, and the positioning protrusion corresponds to the position of the first limiting groove; a limiting protrusion is provided on the circumferential side of the moving member, and the limiting protrusion corresponds to the position of the first limiting groove or the second limiting groove; in the first limiting position, the positioning protrusion and the limiting protrusion are located in the first limiting groove, and in the second limiting position, the positioning protrusion is located in the first limiting groove and the limiting protrusion is located in the second limiting groove.

[0016] Beneficial effects: By providing positioning protrusions on the circumferential side of the driving member, the present utility model can not only enable the driving member to move along the extending direction of the first limiting groove, but also prevent the driving member from rotating relative to the fixed sleeve during movement. In addition, by providing limiting protrusions on the circumferential side of the moving member, the moving member can be stably locked in the first limiting groove or the second limiting groove through the limiting protrusions, ensuring the stability and reliability of the device.

[0017] In an alternative embodiment, the first limiting groove and the second limiting groove are both provided with first positioning inclined surfaces, and the limiting protrusion is provided with a second positioning inclined surface adapted to the first positioning inclined surface; a driving groove is provided on the circumferential side of one end of the driving member facing the moving member, the position of the driving groove corresponds to that of the limiting protrusion, and the driving groove is provided with a driving inclined surface adapted to the second positioning inclined surface.

[0018] Beneficial effects: By providing a driving inclined surface adapted to the second positioning inclined surface on the driving groove of the driving member, the present utility model can enable the driving inclined surface on the driving member to interact with the second positioning inclined surface on the moving member during the process of pressing the driving member, so as to complete the position conversion of the driving limiting protrusion between the first limiting position and the second limiting position. In addition, in order to ensure the stability and reliability of the limiting protrusion during the position conversion process, by providing first positioning inclined surfaces on the first limiting groove and the second limiting groove that cooperate with the second positioning inclined surface of the limiting protrusion, the limiting protrusion can be guided to smoothly enter the first limiting groove or the second limiting groove, realizing the locking of the moving member at the first limiting position or the second limiting position.

[0019] In an alternative embodiment, the width of the limiting protrusion is less than or equal to the minimum width of the first limiting groove.

[0020] Beneficial effects: By making the width of the limiting protrusion less than or equal to the minimum width of the first limiting groove, the present utility model can ensure that the limiting protrusion smoothly enters the first limiting groove, avoiding interference between the limiting protrusion and the first limiting groove and affecting the normal operation of the device.

[0021] In an alternative embodiment, an installation groove is provided in the axial direction of the driving member, and one end of the moving member facing the driving member is inserted into the installation groove.

[0022] Beneficial effects: By providing an installation groove in the axial direction of the driving member and inserting one end of the moving member facing the driving member into the installation groove, on the one hand, it can reduce the difficulty of installing and positioning the driving member and the moving member; on the other hand, it can make the structure of the whole device more compact, which is beneficial to the development of miniaturization.

[0023] In an alternative embodiment, the aerosol generating device further includes a pressing cover disposed within the housing. The pressing cover includes a cover body and an annular cover body extending towards the driving member. The cover body is adapted to abut against the aerosol generating substrate, and the annular cover body is sleeved outside the driving member.

[0024] Advantages: By providing a pressing cover on the driving member and making the cover body in the pressing cover abut against the aerosol generating substrate, the present utility model can increase the contact area between the aerosol generating substrate and the driving member bracket, and thus can transmit the force applied to the aerosol generating substrate to the driving member. In addition, by designing a pressing cover on the driving member, additional protection can be provided for the driving member, reducing the probability of damage to the driving member and extending the service life of the driving member.

[0025] In an alternative embodiment, the aerosol generating device further includes a mounting sleeve. The mounting sleeve is disposed within the housing and connected to the housing. The mounting sleeve is threadedly connected to the end of the fixed sleeve away from the mounting hole and internally provided with an elastic member, and the elastic member abuts against the moving member.

[0026] Advantages: By providing a mounting sleeve connected to the housing within the housing and threadedly connecting the mounting sleeve to the end of the fixed sleeve away from the mounting hole, the present utility model can stably fix the fixed sleeve inside the housing, ensuring the stability and reliability of the driving member and the moving member during movement. Secondly, by providing an elastic member within the mounting sleeve that abuts against the moving member, the elastic force of the elastic member can be utilized to firmly lock the moving member at the first limiting position or the second limiting position, overcoming the interference of external factors on the position of the moving member and improving the reliability of the device.

[0027] In an alternative embodiment, the induction switch includes a magnet and a Hall sensor. One of the magnet and the Hall sensor is disposed between the pressing assembly and the elastic member through a mounting bracket, and the other is located on the circumference of the mounting sleeve; in the first limiting position, the Hall sensor and the magnet are misaligned; in the second limiting position, the Hall sensor and the magnet are in corresponding positions and generate an induction signal.

[0028] Advantages: Since the Hall sensor is very sensitive to magnetic field changes, the opening speed and closing speed of the induction switch can be made faster, improving the responsiveness and user experience of the device.

[0029] In an alternative embodiment, the heating member includes a stainless steel sleeve and a heating film disposed on the stainless steel sleeve. The stainless steel sleeve communicates with the mounting hole and is disposed at the bottom of the mounting hole through a fixing bracket. The stainless steel sleeve is sleeved around the circumference of the aerosol generating substrate.

[0030] Beneficial effects: The stainless steel sleeve of the present utility model is adapted to be sleeved on the periphery of the aerosol generating substrate, and a heating film is arranged on the stainless steel sleeve. It can not only increase the heating area of the heating element on the aerosol generating substrate, but also enable the heating element to uniformly heat the aerosol generating substrate, avoiding problems of local overheating or uneven heating. Description of the drawings

[0031] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural diagram of an aerosol generating device according to an embodiment of the present utility model;

[0033] Figure 2 It is Figure 1 a partial enlarged schematic diagram of A in

[0034] Figure 3 It is a schematic structural diagram of the moving member in the first limiting position according to an embodiment of the present utility model;

[0035] Figure 4 It is a schematic structural diagram of the moving member in the second limiting position according to an embodiment of the present utility model;

[0036] Figure 5 It is Figure 4 a partial enlarged schematic diagram of B in

[0037] Description of reference numerals:

[0038] 1. Housing; 101. Mounting hole; 2. Heating element; 3. Fixed sleeve; 301. First limiting groove; 302. Second limiting groove; 3021. First positioning inclined surface; 4. Pressing assembly; 401. Driving member; 4011. Positioning protrusion; 4012. Driving groove; 4013. Driving inclined surface; 4014. Mounting groove; 402. Moving member; 4021. Limiting protrusion; 4022. Second positioning inclined surface; 5. Pressing cover; 501. Cover body; 502. Annular cover body; 6. Mounting sleeve; 7. Elastic member; 8. Inductive switch; 801. Magnet; 802. Hall sensor; 9. Mounting bracket; 10. Fixed bracket; 11. Aerosol generating substrate. Specific embodiments

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] In view of the problem of poor reliability of aerosol generating devices in the related art, the present utility model provides an aerosol generating device.

[0041] The following will be combined with Figures 1 to 5 to illustrate the embodiments of the present invention.

[0042] According to an embodiment of the present utility model, as Figures 1 to 5 shown, an aerosol generating device is provided, including: a housing 1, a heating element 2, a fixing sleeve 3, a pressing assembly 4, and an inductive switch 8.

[0043] Specifically, the housing 1 is provided with an installation hole 101 adapted to install an aerosol generating substrate 11; the heating element 2 is disposed inside the housing 1 and is adapted to heat the aerosol generating substrate 11; the fixing sleeve 3 is disposed inside the housing 1 and sleeved outside the heating element 2; the fixing sleeve 3 is provided with a first limiting portion and a second limiting portion; the pressing assembly 4 is disposed inside the fixing sleeve 3, and the pressing assembly 4 includes a driving member 401 and a moving member 402; the driving member 401 passes through the fixing sleeve 3 and is connected to the moving member 402, and the driving member 401 is adapted to drive the moving member 402 to switch between a first limiting position and a second limiting position; the inductive switch 8 is electrically connected to the heating element 2; in the first limiting position, the moving member 402 is in limiting cooperation with the first limiting portion, the inductive switch 8 is turned off and the heating element 2 does not heat; in the second limiting position, the moving member 402 is in limiting cooperation with the second limiting portion, the inductive switch 8 is turned on and the heating element 2 heats.

[0044] It should be noted that after the aerosol generating substrate 11 is disposed inside the housing 1 through the installation hole 101, the aerosol generating substrate 11 can abut against the driving member 401. Subsequently, by pressing the aerosol generating substrate 11, the driving member 401 and the moving member 402 can be moved inside the fixing sleeve 3, and at the same time, the driving member 401 can also drive the moving member 402 to switch between the first limiting position and the second limiting position. It should be additionally noted that the contact form between the aerosol generating substrate 11 and the driving member 401 can also be plugging or sleeving, and the present utility model does not make specific limitations thereto.

[0045] It should be noted that the aerosol - generating substrate 11 in this embodiment is made from tobacco or herbs and is prepared into substrates in the following different forms, such as: particulate matter, thin sheets, powder fragments, filaments, pastes, thin cakes, porous aerogels or capsules, etc.

[0046] It can be understood that when the moving member 402 switches from the first limiting position to the second limiting position, it needs to first leave the first limiting portion and then be locked to the second limiting portion. Similarly, when the moving member 402 switches from the second limiting position to the first limiting position, it needs to first leave the second limiting portion and then be locked to the first limiting portion.

[0047] In the embodiment of the present utility model, a pressing assembly 4 is arranged in the fixed sleeve 3. The pressing assembly 4 includes a driving member 401 and a moving member 402. The fixed sleeve 3 is provided with a first limiting portion and a second limiting portion. The driving member 401 can drive the moving member 402 to switch between the first limiting position and the second limiting position; after the aerosol - generating substrate 11 is installed into the installation hole 101, pressing the aerosol - generating substrate 11 causes the driving member 401 to drive the moving member 402 to be in limiting cooperation with the second limiting portion. At this time, the heating member 2 starts to heat the aerosol - generating substrate 11. Pressing the aerosol - generating substrate 11 again causes the driving member 401 to drive the moving member 402 to leave the second limiting portion and be locked to the first limiting portion. At this time, the heating member 2 stops heating the aerosol - generating substrate 11. Thus, by using the aerosol - generating substrate 11 to press the driving member 401 to change the relative position relationship between the moving member 402 and the first limiting portion and the second limiting portion, accurate switching between the heating state and the non - heating state of the heating member 2 can be achieved, improving the usability and reliability of the device. In addition, compared with a contact - type physical switch, the use of an inductive switch 8 can avoid physical contact, reduce maintenance costs, and extend the service life.

[0048] According to an embodiment of the present utility model, such as Figure 2 and Figure 5As shown, the first limiting portion is the first limiting groove 301, and the second limiting portion is the second limiting groove 302. The first limiting groove 301 and the second limiting groove 302 are provided on the inner wall of the fixed sleeve 3 and extend from one end of the fixed sleeve 3 to the other end; along the axial direction of the fixed sleeve 3, the length of the first limiting groove 301 is greater than the length of the second limiting groove 302. In the embodiment of the present invention, by making the length of the first limiting groove 301 greater than the length of the second limiting groove 302, the moving member 402 can be locked at different positions of the fixed sleeve 3, that is, the length of the aerosol generating substrate 11 entering the inside of the housing 1 through the mounting hole 101 can be changed. Specifically, when the moving member 402 is in the first limiting position, the portion of the aerosol generating substrate 11 outside the mounting hole 101 is relatively long, so that the user can more easily and quickly complete the operation of taking and placing the aerosol generating substrate 11, simplify the replacement process of the aerosol generating substrate 11, and improve the convenience of replacement. When the moving member 402 is in the second limiting position, the aerosol generating substrate 11 can extend more into the housing 1, increasing the contact area between the aerosol generating substrate 11 and the heating member 2 and improving the heating efficiency.

[0049] According to an embodiment of the present invention, as Figure 2 and Figure 5 shown, a positioning protrusion 4011 is provided on the circumferential side of the driving member 401, and the positioning protrusion 4011 corresponds to the position of the first limiting groove 301; a limiting protrusion 4021 is provided on the circumferential side of the moving member 402, and the limiting protrusion 4021 corresponds to the position of the first limiting groove 301 or the second limiting groove 302; in the first limiting position, the positioning protrusion 4011 and the limiting protrusion 4021 are located in the first limiting groove 301, and in the second limiting position, the positioning protrusion 4011 is located in the first limiting groove 301 and the limiting protrusion 4021 is located in the second limiting groove 302. In the embodiment of the present invention, by providing the positioning protrusion 4011 on the circumferential side of the driving member 401, not only can the driving member 401 move along the extending direction of the first limiting groove 301, but also the driving member 401 can be prevented from rotating relative to the fixed sleeve 3 during the movement. In addition, by providing the limiting protrusion 4021 on the circumferential side of the moving member 402, the moving member 402 can be stably locked in the first limiting groove 301 or the second limiting groove 302 through the limiting protrusion 4021, ensuring the stability and reliability of the device.

[0050] According to an embodiment of the present invention, as Figure 2 and Figure 5As shown, the first limiting groove 301 and the second limiting groove 302 are both provided with a first positioning inclined surface 3021, and the limiting protrusion 4021 is provided with a second positioning inclined surface 4022 adapted to the first positioning inclined surface 3021; a driving groove 4012 is provided on the circumferential side of one end of the driving member 401 facing the moving member 402, the position of the driving groove 4012 corresponds to that of the limiting protrusion 4021, and the driving groove 4012 is provided with a driving inclined surface 4013 adapted to the second positioning inclined surface 4022. In the embodiment of the present invention, by providing the driving inclined surface 4013 adapted to the second positioning inclined surface 4022 on the driving groove 4012 of the driving member 401, during the process of pressing the driving member 401, the driving inclined surface 4013 on the driving member 401 and the second positioning inclined surface 4022 on the moving member 402 can interact with each other to complete the position conversion of the limiting protrusion 4021 between the first limiting position and the second limiting position. In addition, in order to ensure the stability and reliability of the limiting protrusion 4021 during the position conversion process, by providing the first positioning inclined surface 3021 on the first limiting groove 301 and the second limiting groove 302 that cooperates with the second positioning inclined surface 4022 of the limiting protrusion 4021, the limiting protrusion 4021 can be guided to smoothly enter the first limiting groove 301 or the second limiting groove 302, so as to realize the locking of the moving member 402 at the first limiting position or the second limiting position.

[0051] It should be noted that in the first limiting groove 301 or the second limiting groove 302, the wall surface opposite to the first positioning inclined surface 3021 can be a vertical surface. Correspondingly, the opposite surface of the second positioning inclined surface 4022 on the limiting protrusion 4021 is also a vertical surface. In addition, the first positioning inclined surface 3021 inclines from the bottom to the top of the first limiting groove 301 or the second limiting groove 302 from the direction close to the vertical surface to the direction away from the vertical surface.

[0052] According to an embodiment of the present invention, the width of the limiting protrusion 4021 is less than or equal to the minimum width of the first limiting groove 301. This can ensure that the limiting protrusion 4021 smoothly enters the first limiting groove 301 and avoid interference between the limiting protrusion 4021 and the first limiting groove 301, thus affecting the normal operation of the device.

[0053] According to an embodiment of the present invention, as Figure 1 、 Figure 3 and Figure 4 shown, an installation groove 4014 is provided in the axial direction of the driving member 401, and one end of the moving member 402 facing the driving member 401 is inserted into the installation groove 4014. On the one hand, it can reduce the difficulty of installing and positioning the driving member 401 and the moving member 402; on the other hand, it can make the structure of the whole device more compact, which is beneficial to the development of miniaturization.

[0054] According to an embodiment of the present invention, as Figure 1 、Figure 3 and Figure 4 As shown in Figure 4 , the aerosol generating device further includes a pressing cover 5 disposed in the housing 1. The pressing cover 5 includes a cover body 501 and an annular cover body 502 extending toward the driving member 401. The cover body 501 is adapted to abut against the aerosol generating substrate 11, and the annular cover body 502 is sleeved outside the driving member 401. In the embodiment of the present invention, by providing the pressing cover 5 on the driving member 401 and making the cover body 501 in the pressing cover 5 abut against the aerosol generating substrate 11, the contact area between the aerosol generating substrate 11 and the driving member 401 bracket can be increased, and thus the acting force applied to the aerosol generating substrate 11 can be transmitted to the driving member 401. In addition, by designing the pressing cover 5 on the driving member 401, additional protection can be provided for the driving member 401, the probability of damage to the driving member 401 can be reduced, and the service life of the driving member 401 can be extended.

[0055] According to an embodiment of the present invention, as Figure 1 、 Figure 3 and Figure 4 As shown in Figure 4 , the aerosol generating device further includes a mounting sleeve 6. The mounting sleeve 6 is disposed in the housing 1 and connected to the housing 1. The mounting sleeve 6 is threadedly connected to one end of the fixing sleeve 3 away from the mounting hole 101 and internally provided with an elastic member 7. The elastic member 7 abuts against the moving member 402. In the embodiment of the present invention, by providing the mounting sleeve 6 connected to the housing 1 in the housing 1 and making the mounting sleeve 6 threadedly connected to one end of the fixing sleeve 3 away from the mounting hole 101, the fixing sleeve 3 can be stably fixed inside the housing 1, ensuring the stability and reliability of the driving member 401 and the moving member 402 during the movement process. Secondly, by providing the elastic member 7 abutting against the moving member 402 in the mounting sleeve 6, the elastic acting force of the elastic member 7 can be used to firmly lock the moving member 402 at the first limit position or the second limit position, overcoming the interference of external factors on the position of the moving member 402 and improving the reliability of the device.

[0056] It should be noted that the elastic member 7 in this embodiment can be a spring or an elastic sleeve.

[0057] According to an embodiment of the present invention, as Figure 1 、 Figure 3 and Figure 4As shown, the inductive switch 8 includes a magnet 801 and a Hall sensor 802. One of the magnet 801 and the Hall sensor 802 is disposed between the pressing assembly 4 and the elastic member 7 through a mounting bracket 9, and the other is located on the circumferential side of the mounting sleeve 6; in the first limiting position, the Hall sensor 802 is misaligned with the magnet 801; in the second limiting position, the Hall sensor 802 corresponds to the position of the magnet 801 and generates an induction signal. It can be understood that since the Hall sensor 802 is very sensitive to magnetic field changes, the opening speed and closing speed of the inductive switch 8 can be made faster, improving the responsiveness and user experience of the device.

[0058] According to an embodiment of the present invention, the heating member 2 includes a stainless steel sleeve and a heating film disposed on the stainless steel sleeve. The stainless steel sleeve communicates with the mounting hole 101 and is disposed at the bottom of the mounting hole 101 through a fixing bracket 10. The stainless steel sleeve is sleeved on the circumferential side of the aerosol generating substrate 11. In the embodiment of the present invention, the stainless steel sleeve is adapted to be sleeved on the circumferential side of the aerosol generating substrate 11, and a heating film is disposed on the stainless steel sleeve, which can not only increase the heating area of the heating member 2 for the aerosol generating substrate 11, but also enable the heating member 2 to uniformly heat the aerosol generating substrate 11, avoiding problems of local overheating or uneven heating.

[0059] Taking a specific embodiment to illustrate the specific working process of the aerosol generating device:

[0060] The aerosol generating substrate 11 is assembled into the housing 1 through the mounting hole 101 and abuts against the driving member 401. Subsequently, a downward acting force is applied to the driving member 401 through the aerosol generating substrate 11, so that the moving member 402 leaves the first limiting groove 301 and is locked in the second limiting groove 302. During this process, the mounting bracket 9 equipped with the magnet 801 will compress the elastic member 7 until the Hall sensor 802 corresponds to the position of the magnet 801 and generates an induction signal. At this time, the inductive switch 8 will be in an on state and control the heating member 2 to heat the aerosol generating substrate 11. Similarly, if you want to turn off the heating function of the aerosol generating device, apply a downward acting force to the driving member 401 again through the aerosol generating substrate 11, so that the moving member 402 leaves the second limiting groove 302 and is locked in the first limiting groove 301. During this process, the elastic member 7 will drive the mounting bracket 9 equipped with the magnet 801 back to the initial position by using its own elastic acting force, that is, the position of the Hall sensor 802 is misaligned with the magnet 801, so that the inductive switch 8 returns to the off state again and controls the heating member 2 to stop heating the aerosol generating substrate 11.

[0061] Although embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An aerosol generating device, characterized in that, Comprising: A housing (1) provided with an installation hole (101) adapted to install an aerosol - generating substrate (11); A heating element (2) disposed within the housing (1) and adapted to heat the aerosol - generating substrate (11); A fixing sleeve (3) disposed within the housing (1) and sleeved outside the heating element (2), the fixing sleeve (3) being provided with a first limiting portion and a second limiting portion; A pressing assembly (4) disposed within the fixing sleeve (3), the pressing assembly (4) including a driving member (401) and a moving member (402); the driving member (401) passes through the fixing sleeve (3) and is connected to the moving member (402), and the driving member (401) is adapted to drive the moving member (402) to switch between a first limiting position and a second limiting position; An inductive switch (8) electrically connected to the heating element (2); In the first limiting position, the moving member (402) is in limiting cooperation with the first limiting portion, the inductive switch (8) is closed and the heating element (2) does not heat; in the second limiting position, the moving member (402) is in limiting cooperation with the second limiting portion, the inductive switch (8) is turned on and the heating element (2) heats.

2. The aerosol generating device according to claim 1, characterized in that, The first limiting portion is a first limiting groove (301), the second limiting portion is a second limiting groove (302), the first limiting groove (301) and the second limiting groove (302) are disposed on the inner wall of the fixing sleeve (3) and extend from one end of the fixing sleeve (3) to the other end; along the axial direction of the fixing sleeve (3), the length of the first limiting groove (301) is greater than the length of the second limiting groove (302).

3. The aerosol generating device according to claim 2, wherein A positioning protrusion (4011) is provided on the circumferential side of the driving member (401), and the positioning protrusion (4011) corresponds to the position of the first limiting groove (301); a limiting protrusion (4021) is provided on the circumferential side of the moving member (402), and the limiting protrusion (4021) corresponds to the position of the first limiting groove (301) or the second limiting groove (302); in the first limiting position, the positioning protrusion (4011) and the limiting protrusion (4021) are located in the first limiting groove (301), and in the second limiting position, the positioning protrusion (4011) is located in the first limiting groove (301), and the limiting protrusion (4021) is located in the second limiting groove (302).

4. The aerosol generating device according to claim 3, characterized in that, Both the first limiting groove (301) and the second limiting groove (302) are provided with a first positioning inclined surface (3021), and the limiting protrusion (4021) is provided with a second positioning inclined surface (4022) adapted to the first positioning inclined surface (3021); a driving groove (4012) is provided on the circumferential side of the end of the driving member (401) facing the moving member (402), the driving groove (4012) corresponds to the position of the limiting protrusion (4021), and the driving groove (4012) is provided with a driving inclined surface (4013) adapted to the second positioning inclined surface (4022).

5. The aerosol generating device according to claim 3, characterized in that, The width of the limiting protrusion (4021) is less than or equal to the minimum width of the first limiting groove (301).

6. The aerosol generating device according to any one of claims 1 to 5, characterized in that, An installation groove (4014) is axially provided on the driving member (401), and one end of the moving member (402) facing the driving member (401) is inserted into the installation groove (4014).

7. The aerosol generating device according to any one of claims 1 to 5, characterized in that, It further includes a pressing cover (5) arranged in the housing (1). The pressing cover (5) includes a cover body (501) and an annular cover body (502) extending towards the driving member (401). The cover body (501) is adapted to abut against the aerosol generating substrate (11), and the annular cover body (502) is sleeved outside the driving member (401).

8. The aerosol generating device according to any one of claims 1 to 5, characterized in that It further includes an installation sleeve (6). The installation sleeve (6) is arranged in the housing (1) and is connected to the housing (1). The installation sleeve (6) is threadedly connected to the end of the fixed sleeve (3) away from the installation hole (101) and internally provided with an elastic member (7). The elastic member (7) abuts against the moving member (402).

9. The aerosol generating device according to claim 8, wherein The induction switch (8) includes a magnet (801) and a Hall sensor (802). One of the magnet (801) and the Hall sensor (802) is arranged between the pressing assembly (4) and the elastic member (7) through a mounting bracket (9), and the other is located on the periphery of the installation sleeve (6); in the first limiting position, the Hall sensor (802) and the magnet (801) are arranged in a staggered manner; in the second limiting position, the positions of the Hall sensor (802) and the magnet (801) correspond to each other and an induction signal is generated.

10. The aerosol generating device according to any one of claims 1 to 5, characterized in that, The heating member (2) includes a stainless steel sleeve and a heating film arranged on the stainless steel sleeve. The stainless steel sleeve is communicated with the installation hole (101) and is arranged at the bottom of the installation hole (101) through a fixed bracket (10). The stainless steel sleeve is sleeved on the periphery of the aerosol generating substrate (11).

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