Main unit of aerosol-generating device, and aerosol generating device

Abstract

The present application relates to the technical field of aerosol-generating devices, and in particular to an aerosol-generating device with good power source reliability. A main unit comprises a power supply unit, a housing assembly and a locking structure, wherein the power supply unit comprises a power source and a controller, the power source outputting a voltage and a current in response to a control signal output by the controller; the housing assembly comprises a cylindrical housing and a bottom cover connected to a first end of the cylindrical housing, a second port for loading or unloading the power supply unit is provided at a second end of the cylindrical housing; and the locking structure is configured to lock the power supply unit to the cylindrical housing or to lock the power supply unit to the bottom cover, so as to limit the displacement of the power supply unit relative to the cylindrical housing.

Description

Host of aerosol generating device and aerosol generating device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese invention patent application filed on December 15, 2023, with application number 2023117335904, entitled "An aerosol generating device and its host," the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of aerosol generating devices, and in particular to an aerosol generating device with good power supply reliability. Background Art

[0004] Aerosol-generating devices are used to generate aerosols for inhalation. These devices can be broadly divided into two categories. The first type heats a rod-like aerosol-generating substrate. Specifically, the rod is inserted into the device's heating tube, which heats the rod to generate the aerosol. The second type heats an aerosol-generating oil. This oil is added to the device and atomized using an electric heater to generate the aerosol.

[0005] In the related art, the second aerosol generating device includes a shell and a power supply in the shell. In order to ensure the stability of the power supply, the shell has an upper cover and a lower cover. The power supply is fixed in the shell by the upper cover or the lower cover, and the reliability of the power supply is poor. Summary of the Invention

[0006] The present application provides an aerosol generating device, which is used to improve the problem of poor power supply installation reliability in current aerosol generating devices.

[0007] In addition, the purpose of this application is also to provide a host of the above-mentioned aerosol generating device.

[0008] According to a first aspect, an embodiment provides a host of an aerosol generating device, the host comprising:

[0009] a power supply unit, the power supply unit including a power supply and a controller, the power supply outputting voltage and current in response to a control signal output by the controller;

[0010] a housing assembly comprising a cylindrical housing and a bottom cover connected to a first end of the cylindrical housing, wherein a second end of the cylindrical housing has a second port for inserting or removing the power supply unit;

[0011] and a locking structure for locking the power supply unit and the cylindrical shell, or for locking the power supply unit and the bottom cover, so as to limit the displacement of the power supply unit relative to the cylindrical shell.

[0012] Furthermore, in one embodiment, the power supply unit includes a power supply bracket, the power supply is configured on the power supply bracket, at least a portion of the locking structure is configured on the power supply bracket, and the locking structure is used to lock the power supply bracket and the cylindrical shell.

[0013] Furthermore, in one embodiment, the power supply bracket has a bracket plug-in structure for plugging into the atomizer of the aerosol generating device.

[0014] Furthermore, in one embodiment, the bracket plug-in structure includes a socket for inserting the atomizer, and the hole wall of the socket has a guide slot for guiding the atomizer to be inserted into the socket, and the guide slot has a guide section, and the opening of the guide section gradually shrinks along the insertion direction of the atomizer.

[0015] Furthermore, in one embodiment, the bottom cover is movably configured at the first end of the cylindrical shell, and the bottom cover has a first position and a second position relative to the cylindrical shell. When the bottom cover is in the second position, the bottom cover causes the locking structure to be unlocked from the cylindrical shell; when the bottom cover is in the first position, the locking structure is locked to the cylindrical shell.

[0016] Furthermore, in one embodiment, the bottom cover has a pushing portion; the pushing portion is used to push the power supply unit or the locking structure when the bottom cover is pressed from the first position to the second position, so as to unlock the power supply unit and the cylinder shell.

[0017] Furthermore, in one embodiment, the power supply unit includes a power supply bracket, the power supply is configured on the power supply bracket, at least a portion of the locking structure is configured on the power supply bracket, and the locking structure is used to lock the power supply bracket and the cylinder shell; the pushing portion pushes the locking structure to elastically deform the locking structure and then unlock it from the cylinder shell.

[0018] Furthermore, in one embodiment, the locking structure includes a bracket locking arm and a bracket lock at the end of the bracket locking arm, and the first end of the cylindrical shell has a lock adapter structure that is locked with the bracket lock; the pushing portion is used to push the bracket lock so that the bracket locking arm is elastically deformed and then the bracket lock and the lock adapter structure are unlocked.

[0019] Furthermore, in one embodiment, the lock buckle adapting structure is a lock hook or a lock hole configured on the cylindrical shell, and the lock buckle is locked by being hooked with the lock hook or the lock buckle is locked in the lock hole.

[0020] Furthermore, in one embodiment, the bottom cover has a bottom cover stop structure; before the bottom cover is pressed to push the power supply bracket, the bottom cover stop structure and the cylinder shell are blocked to prevent the bottom cover from moving away from the power supply bracket.

[0021] Furthermore, in one embodiment, the bottom cover anti-retraction structure includes an anti-retraction hook, and the bottom of the cylinder shell has a hook matching groove or a hook matching hole, and at least a part of the anti-retraction hook is in the hook matching groove or the hook matching hole.

[0022] Furthermore, in one embodiment, at least a portion of the locking structure is configured on the power supply unit, the locking structure includes a locking guide protrusion, and the cylindrical shell has a guide slope facing the second port. When the locking structure is installed into the cylindrical shell along with the power supply unit, the guide slope slides with the locking guide protrusion to guide the locking structure to lock the power supply unit and the cylindrical shell.

[0023] Furthermore, in one embodiment, the bottom of the cylindrical shell has a rotation-stop groove, and the locking guide protrusion is inserted into the rotation-stop groove after the locking structure locks the power supply unit and the cylindrical shell, thereby preventing the power supply unit from rotating.

[0024] Furthermore, in one embodiment, the power supply unit includes a suction sensing device, which is used to sense the suction state of the aerosol generating device, and the power supply should supply power to the atomizer of the aerosol generating device based on the sensing result of the suction sensing device; one end of the power supply unit is away from the first end, and the other end is close to the first end, and the suction sensing device is located at the end of the power supply unit away from the first end.

[0025] Furthermore, in one embodiment, the cylindrical shell has an atomizer installation space for loading the atomizer of the aerosol generating device, the atomizer installation space is located on the side of the power supply unit facing the second port, and the power supply unit has a fixed connection structure for fixedly connecting with the atomizer of the aerosol generating device.

[0026] Furthermore, in one embodiment, the power supply unit includes an indicator light, which is located at the end of the power supply unit away from the first end. The power supply unit also includes a light guide bar, which extends to the first end of the cylindrical shell. The bottom cover is a light-transmitting bottom cover.

[0027] In a second aspect, an embodiment provides an aerosol generating device, comprising a host and a nebulizer, wherein the host is the host described in any one of the embodiments of the first aspect; the power supply unit supplies power to the nebulizer, and the nebulizer is used to heat and atomize an aerosol generating matrix to generate an aerosol.

[0028] Furthermore, in one embodiment, the bottom of the atomizer is detachably connected to the power supply unit, the top of the atomizer has a suction nozzle, and the bottom of the atomizer is inserted into the cartridge shell.

[0029] Furthermore, in one embodiment, the aerosol generating device is a disposable aerosol generating device, the atomizer has an oil storage tank for storing aerosol generating oil, the atomizer includes an electric heating element, the power supply supplies power to the electric heating element, and the electric heating element is used to heat the aerosol generating oil to generate aerosol.

[0030] According to the aerosol generating device of the above embodiment, the second port of the cylindrical shell in the main unit allows the power supply unit to be installed or removed. After the power supply unit is installed, the power supply unit can be locked by a locking structure, wherein the locking structure locks the power supply unit with the cylindrical shell or the bottom cover. After locking, the power supply unit is not easy to shake and has better reliability, thereby improving the problem of poor power supply installation reliability in current aerosol generating devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic structural diagram of an aerosol generating device in an embodiment;

[0032] FIG2 is a cross-sectional view of an aerosol generating device in an embodiment;

[0033] FIG3 is an exploded view of an aerosol generating device in practice;

[0034] FIG4 is a schematic diagram of a disassembled aerosol generating device in an embodiment;

[0035] FIG5 is a schematic structural diagram of an atomizer, a power supply bracket, and a base in an embodiment;

[0036] FIG6 is a schematic diagram of the structure of a power supply bracket and a base before assembly in an embodiment;

[0037] FIG7 is another structural schematic diagram of a power supply bracket and a base before assembly in an embodiment;

[0038] FIG8 is a schematic structural diagram of a power supply unit in an implementation;

[0039] FIG9 is another cross-sectional view of an aerosol generating device in an embodiment;

[0040] FIG10 is a top view of an aerosol generating device in practice;

[0041] FIG11 is a cross-sectional view along AA in FIG10 .

[0042] List of feature names corresponding to the reference numerals in the figure: 1. atomizer; 11. nozzle; 12. electric heating element; 13. atomizer shell; 131. plug; 132. guide strip; 14. atomizer upper cover; 15. induction device cover; 16. oil-absorbing cotton; 17. oil storage cotton; 18. atomization assembly; 19. circuit board; 20. suction induction device; 110. buckle; 111. card hole; 10. host; 113. oil storage tank; 2. power supply bracket; 21. power supply tank; 22. locking structure; 221. bracket locking arm; 222. bracket lock; 2221. lock upper side; 2222. lock lower side; 223. locking guide protrusion; 23. jack; 24. guide slot; 2 41. Guide section; 201. Bracket plug-in structure; 3. Power supply; 4. Shell assembly; 41. Cylinder shell; 4101. First end; 4102. Second end; 411. Second port; 412. Guide slope; 413. Anti-rotation groove; 414. Lock hook; 4141. Upper side of lock hook; 4142. Lower side of lock hook; 415. Bottom cover movable hole; 416. Hook fitting hole; 417. Cylinder body; 418. Base; 42. Bottom cover; 421. Pushing part; 422. Anti-retraction hook; 423. Cover body; 424. Bottom cover locking arm; 410. Lock adapter structure; 420. Bottom cover anti-retraction structure; 419. Atomizer installation space; 5. Indicator light; 6. Light guide bar; 7. Power supply unit.

[0043] Explanation of the reference numerals in brackets in the accompanying drawings: In the reference numerals in brackets in the accompanying drawings, the features referred to by the reference numerals are both the features represented by the numbers in the brackets and the features represented by the numbers outside the brackets. DETAILED DESCRIPTION

[0044] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0045] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0046] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0047] In one embodiment, referring to Figures 1 to 7 , an aerosol generating device includes a main unit 10 and an atomizer 1 for heating and atomizing an aerosol-generating substrate to generate an aerosol. The main unit 10 includes a power supply unit 7, a housing assembly 4, and a locking structure 22. The power supply unit 7 supplies power to the atomizer 1. The locking structure 22 is used to act on the power supply unit 7 to lock the power supply unit 7 with the housing assembly.

[0048] The power supply unit 7 includes a power supply 3 and a controller. The power supply 3 outputs voltage and current in response to control signals from the controller. The housing assembly 4 includes a cylindrical housing 41 and a bottom cover 42 connected to a first end 4101 of the cylindrical housing 41. The second end 4102 of the cylindrical housing 41 has a second port 411 for inserting or removing the power supply unit 7. The locking structure 22 is used to lock the power supply unit 7 with the cylindrical housing 41 or with the bottom cover 42, thereby limiting the displacement of the power supply unit 7 relative to the cylindrical housing 41.

[0049] The power supply unit 7 can be installed into the shell assembly 4 through the second port 411. After installation, the power supply unit 7 is locked by the locking structure 22 to limit the movement of the power supply unit 7, so that the reliability of the power supply unit 7 is better.

[0050] Regarding the atomizer 1, the atomizer 1 has a nozzle 11 at the top, which is used to inhale the aerosol generated by the atomizer 1. In the present application, the atomizer 1 can use an aerosol generating rod, which is heated to generate aerosol, or can use an aerosol generating oil, which is heated and atomized to generate aerosol.

[0051] In one embodiment, referring to Figures 2 and 3 , the aerosol-generating device is a disposable aerosol-generating device. The atomizer 1 includes an oil storage tank 113 for storing aerosol-generating oil. The atomizer 1 includes an electric heater 12, which is powered by a power source 3. The electric heater 12 heats the aerosol-generating oil to generate aerosol. In one embodiment, the power source 3 is a battery.

[0052] In this application, any feasible atomizer 1 in the relevant technology can be used. Since the atomizer 1 in this application is a mature existing structure, this application only provides a brief introduction. Please refer to Figures 2 and 3. The atomizer 1 includes an atomizer shell 13 and an atomizer cover 14. The suction nozzle 11 is installed on the atomizer cover 14, and there is oil-absorbing cotton 16 between the suction nozzle 11 and the atomizer cover 14. The atomizer shell 13 contains an oil storage tank 113, oil storage cotton 17 in the oil storage tank 113, and an atomizing assembly 18. The atomizing assembly 18 includes an electric heating element 12. The aerosol-generating oil in the oil storage tank 113 is heated and atomized to generate an aerosol after reaching the position of the electric heating element 12.

[0053] Regarding the shell assembly 4, in one embodiment, please refer to Figures 2 and 3. The cylindrical shell 41 has an atomizer installation space 419 for installing the atomizer 1, and the power supply unit 7 has a fixed connection structure for fixedly connecting to the atomizer 1 of the aerosol generating device. In this way, the power supply unit 7 can be fixed to the atomizer 1 and then installed as a whole in the cylindrical shell 41, so that the atomizer 1 and the power supply unit 7 can be assembled as separate modules into a combined module, and then assembled as a whole with the cylindrical shell 41, simplifying the assembly process. In one embodiment, please refer to Figures 2 and 3, the atomizer installation space 419 is located on the side of the power supply unit 7 facing the second port 411.

[0054] In some other embodiments, the housing assembly 4 may be used only to mount the power supply unit 7, and the atomizer 1 may have its own atomizer housing. In this case, after the main unit 10 is connected to the atomizer 1, the atomizer 1 is located outside the cartridge housing 41. In some other embodiments, the atomizer 1 and the power supply unit 7 may be separately and sequentially installed in the cartridge housing 41.

[0055] In one embodiment, referring to Figures 2 and 3 , the power supply unit 7 includes a power supply bracket 2, on which the power supply 3 is disposed. A locking structure 22 is at least partially disposed on the power supply bracket 2, and is used to lock the power supply bracket 2 with the cylindrical housing 41. It should be noted that the locking structure 22 can be disposed solely on the power supply bracket 2, on the cylindrical housing 4, or partially on the cylindrical housing 4 and partially on the power supply bracket 2.

[0056] In order to facilitate assembly and disassembly, the power supply bracket 2 is connected to the bottom of the atomizer 1. The power supply bracket 2 and the atomizer 1 can be connected in any feasible manner, including bonding, welding, snap connection, or fixed connection by fasteners.

[0057] In one embodiment, referring to Figure 3, the second port 411 is located at the top of the cartridge housing 41. The mouthpiece 11 is exposed from the housing assembly 4 for the user to inhale the aerosol generated by the aerosol generating device.

[0058] Referring to Figures 2, 4, and 11, the locking structure 22 locks with the cylindrical housing 41 after the power supply bracket 2 is installed in the housing assembly 4, preventing the power supply bracket 2 from leaving the housing assembly 4. To facilitate removal of the power supply 3, a bottom cover 42 is movably disposed at the first end 4101 of the cylindrical housing 41. The bottom cover 42 has a first position and a second position relative to the cylindrical housing 41. When the bottom cover 42 is in the second position, the bottom cover 42 unlocks the locking structure 22 from the cylindrical housing 41. When the bottom cover 42 is in the first position, the locking structure 22 is locked to the cylindrical housing 41.

[0059] When the power supply 3 needs to be recovered, the bottom cover 42 is pressed so that the bottom cover 42 pushes the power supply unit 7, and the locking structure 22 and the cylinder shell 41 are unlocked. After unlocking, the power supply unit 7 can be pulled out from the second port 411, and then the power supply 3 can be recovered, which improves the current technical problems of difficult disassembly of the aerosol generating device and inconvenient recovery of the power supply 3.

[0060] In one embodiment, referring to Figures 2, 3, 10, and 11, the bottom cover 42 has a pushing portion 421. The pushing portion 421 is used to push the power supply unit 7 or the locking structure 22 when the bottom cover 42 is pressed from the first position to the second position, thereby unlocking the power supply unit 7 from the cylinder housing 41. Unlocking the locking structure 22 by pressing the bottom cover 42 is simple and convenient.

[0061] In one embodiment, referring to Figures 2 and 3 , to facilitate unlocking of the locking structure 22, a push portion 421 pushes against the locking structure 22, elastically deforming the locking structure 22 and then unlocking it from the cylindrical housing 41. The locking structure 22 is located at the bottom of the power supply bracket 2. The push portion 421 of the bottom cover 42 directly acts on the locking structure 22, making unlocking more convenient and effective, and less prone to malfunction. The large bottom space of the power supply bracket 2 also facilitates the placement of the locking structure 22.

[0062] In some other embodiments, in addition to elastically deforming the locking structure 22 to unlock the locking structure 22, a mechanical lock structure can also be used. For example, the locking structure 22 includes a hook movably connected to the power supply bracket 2 and an elastic member that applies elastic force to the hook. The elastic member applies force to the hook so that the hook always hooks the cylinder shell 41, keeping the locking structure 22 in a locked state. When unlocking is required, the pushing portion 421 pushes the lock hook to separate the lock hook from the cylinder shell 41, thereby completing the unlocking of the locking structure 22.

[0063] In one embodiment, referring to Figures 3, 5, and 7, to facilitate unlocking, the locking structure 22 includes a bracket locking arm 221 extending vertically and a bracket locking buckle 222 at the lower end of the bracket locking arm 221. The bottom of the cylindrical shell 41 has a locking buckle adapting structure 410 that locks with the bracket locking buckle 222. The pushing portion 421 is used to push the bottom of the bracket locking buckle 222, causing the bracket locking arm 221 to deform and then unlock from the cylindrical shell 41. By arranging the bracket locking buckle 222 at the lower end of the bracket locking arm 221, the bracket locking buckle 222 is easier to deform, and less force is required during the unlocking operation.

[0064] In one embodiment, referring to FIG7 , there are at least two bracket locking arms 221 , each of which is spaced apart circumferentially from the cylindrical shell 41 . Each bracket locking arm 221 is provided with a bracket locking catch 222 . The presence of at least two bracket locking arms 221 allows the power supply bracket 2 to be locked to the cylindrical shell 41 at at least two locations circumferentially of the cylindrical shell 41 , providing greater stability. In other embodiments, only one bracket locking arm 221 may be provided.

[0065] In one embodiment, referring to FIG7 , there are two bracket locking arms 221 , which are arranged opposite each other and have arc-shaped cross-sections. In other embodiments, the cross-sections of the bracket locking arms 221 can be circular, square, or any other feasible shape as needed.

[0066] In one embodiment, referring to FIG7 , there are at least two locking adapter structures 410 , each corresponding to at least one bracket locking latch 222 on a bracket locking arm 221. When there are more than two locking adapter structures 410 , the locking stability between the power supply bracket 2 and the cylindrical shell 41 is better.

[0067] Regarding the lock buckle adapting structure 410, in one embodiment, referring to FIG7 , the lock buckle adapting structure 410 includes a lock hook 414 located within the cylindrical shell 41, and the bracket lock buckle 222 is locked by hooking with the lock hook 414. In some other embodiments, the lock buckle adapting structure 410 can also be a lock hole located within the cylindrical shell 41, and the lock buckle is locked in the lock hole to achieve locking.

[0068] In one embodiment, when the bracket lock 222 and the lock hook 414 are locked, the bracket lock 222 is inserted downward into the cylinder shell 41, and the upper side surface 4141 and the lower side surface 4142 of the lock hook are both inclined surfaces. The bracket lock 222 first contacts the upper side surface 4141 of the lock hook, and after pressing down the atomizer 1 and the power supply bracket 2, the bracket locking arm 221 is deformed under the guidance of the upper side surface 4141 of the lock hook until the upper side surface 2221 of the lock hook is hooked with the lower side surface 4142 of the lock hook, completing the locking of the lock and the lock hook 414.

[0069] It should be noted that, referring to Figures 3 and 7 , the upper side 2221 of the lock catch is an inclined surface, as is the lower side 2222 of the lock catch. Thus, when the pushing portion 421 on the bottom cover 42 pushes the lock catch to unlock, the upper side 2221 of the lock catch contacts the lower side 4142 of the lock hook, guiding the bracket locking arm 221 to deform and separate the bracket lock catch 222 from the lock hook 414.

[0070] In some other embodiments, the lock buckle upper side 2221 and the lock buckle lower side 2222 are both inclined surfaces, and the lock hook upper side 4141 and the lock hook lower side 4142 can also be planes perpendicular to the axis of the cylinder shell 41. In some other embodiments, the lock buckle upper side 2221 and the lock buckle lower side 2222 can also be planes perpendicular to the axis of the cylinder shell 41, and the lock hook upper side 4141 and the lock hook lower side 4142 are both planes.

[0071] In one embodiment, please refer to Figures 3 and 7, the locking structure 22 is configured on the power supply unit 7, the locking structure 22 includes a locking guide protrusion 223, and the cylindrical shell 41 has a guide slope 412 facing the second port 411. When the locking structure 22 is installed into the cylindrical shell 41 along with the power supply unit 7, the guide slope 412 slides with the locking guide protrusion 223 to guide the locking structure 22 to lock the power supply unit 7 with the cylindrical shell 41. Specifically, in one embodiment, referring to Figures 3 and 7, in order to lock the bracket lock buckle 222 on the bracket lock arm 221 with the corresponding lock adapter structure 410, a locking guide protrusion 223 is provided on the bracket lock arm 221, and a guide slope 412 facing the second port 411 is provided in the cartridge shell 41 (see Figure 7). When the power supply bracket 2 is installed into the cartridge shell 41, the guide slope 412 slides with the locking guide protrusion 223 to guide the power supply bracket 2 to rotate to an appropriate angle so that the bracket lock buckle 222 on the bracket lock arm 221 is locked with the corresponding lock adapter structure 410. In this way, when the power supply bracket 2 and the atomizer 1 are installed, the locking guide protrusion 223 guides the power supply bracket 2 to be locked with the cartridge shell 41, which is conducive to improving assembly efficiency.

[0072] In one embodiment, referring to Figures 3 and 7 , the bottom of the cylindrical housing 41 has a rotation-stop groove 413. After the locking structure 22 locks the power supply unit 7 with the cylindrical housing 41, the locking guide protrusion 223 is inserted into the rotation-stop groove 413, preventing the power supply unit 7 from rotating. The locking guide protrusion 223 cooperates with the rotation-stop groove 413 to prevent rotation, making the cylindrical housing 41 and the power supply bracket 2 more stable and less likely to shake.

[0073] In one embodiment, referring to Figures 6 and 7 , the locking guide protrusion 223 is a long, vertically extending protrusion. The locking guide protrusion 223 is disposed on the bracket locking arm 221. In one embodiment, the locking guide protrusion 223 is located between two bracket locking buckles 222, which are connected together via the locking guide protrusion 223. Specifically, the number of locking hooks 414 and the number of bracket locking buckles 222 are both four, with the anti-rotation groove 413 located between the two locking hooks 414.

[0074] In one embodiment, referring to FIG2 , the bottom of the cylindrical shell 41 has a bottom cover movable hole 415 that guides the bottom cover 42 to move along the extension direction of the cylindrical shell 41. The guiding effect of the bottom cover movable hole 415 can make the bottom cover 42 more stable when pressed, and is less likely to deflect or get stuck.

[0075] In one embodiment, please refer to Figures 3 and 5, the bottom cover 42 has a bottom cover stop structure 420. Before pressing the bottom cover 42 to push the power supply bracket 2, the bottom cover stop structure 420 and the cylinder shell 41 block to prevent the bottom cover 42 from moving away from the power supply bracket 3. Specifically, in one embodiment, please refer to Figures 3 and 5, the bottom cover stop structure 420 includes a stop hook 422, and the bottom of the cylinder shell 41 has a hook matching groove or a hook matching hole 416, and at least a portion of the stop hook 422 is in the hook matching groove or the hook matching hole 416. The stop hook 422 can better limit the bottom cover 42 from separating from the cylinder shell 41.

[0076] In one embodiment, referring to Figures 3 and 5 , the bottom cover 42 includes a cover body 423 and a bottom cover locking arm 424 located on the side of the cover body 423 facing the power supply bracket 2. The retaining hook 422 is located at the end of the bottom cover locking arm 424 away from the cover body 423. During installation, the bottom cover 42 can be deformed to allow the retaining hook 422 to be inserted through the lower end of the bottom cover movable hole 415. To prevent the bottom cover 422 from falling off, the lower side of the retaining hook 422 facing the cover body 423 is a plane perpendicular to the centerline of the cylindrical shell 41, and the upper side of the retaining hook 422 is an inclined surface to guide the deformation of the bottom cover locking arm 424 when inserted into the cylindrical shell 41.

[0077] In one embodiment, please refer to Figures 3 and 5, there are two bottom cover locking arms 424, and the two bottom cover locking arms 424 are arranged opposite to each other. When the bottom cover 42 is installed into the bottom cover movable hole 415, the retaining hooks 422 on the two bottom cover locking arms 424 approach each other to allow the bottom cover 42 to be installed into the bottom cover movable hole 415.

[0078] In one embodiment, referring to Figure 3 , the push portion 421 of the bottom cover 42 is a protrusion located on the side of the cover 423 facing the power supply bracket 2. The protrusion's cross-section, perpendicular to the centerline of the cylindrical shell 41, is curved, effectively matching the shape of the bracket lock catch 222 on the bracket lock arm 221, facilitating unlocking. In one embodiment, there are two push portions 421, one for each bracket lock arm 221.

[0079] In order to facilitate the processing of the cylindrical shell 41, in one embodiment, please refer to Figure 3, the cylindrical shell 411 includes a cylindrical body 417 and a base 418 at the bottom of the cylindrical body 417. The bottom cover 42 is movably configured on the base 418, and the base 418 is fixed to the cylindrical body 417. The locking structure 22 is locked with the base 418. In this way, the lock buckle adapter structure 410 and the like that are adapted to the locking structure 22 are all on the base 418. The base 418 is processed separately, and the processing difficulty is small. The base 418 and the cylindrical body 417 can be connected in any feasible manner, such as welding, threaded connection, clamping, bonding or interference fit. In some other embodiments, the cylindrical shell 411 can also be integrally formed.

[0080] Regarding the power supply bracket 2 and the power supply 3, the two can be assembled together in any feasible way. In one embodiment, please refer to Figures 2 to 5. The power supply bracket 2 has a power supply compartment 21, one side of the power supply compartment 21 is open, and the power supply 3 is inserted into the power supply compartment 21.

[0081] In one embodiment, the atomizer housing 13 has an atomizer fixing structure, and the power supply unit 7 has a fixed connection structure fixedly connected to the atomizer 1. The atomizer fixing structure is fixedly connected to the fixed connection structure.

[0082] In one embodiment, referring to FIG. 2 to FIG. 4 , FIG. 8 and FIG. 9 , the atomizer 1 is plugged and fixed to the power supply unit 7 , and the atomizer fixing structure includes an atomizer plugging structure plugged into the power supply unit 7 .

[0083] In one embodiment, referring to Figures 2 to 4, 8, and 9, the power supply bracket 2 is plugged into the atomizer 1, and the power supply bracket 2 has a bracket plugging structure 201 for plugging into the atomizer 1. The bracket plugging structure 201 constitutes a fixed connection structure for fixing the power supply unit 7 to the atomizer 1.

[0084] In one embodiment, referring to FIG. 2 to FIG. 4 , FIG. 8 and FIG. 9 , one of the atomizer fixing structure and the fixed connection structure has a socket 23 , and the other has a plug 131 , which is inserted into the socket 23 .

[0085] In one embodiment, referring to Figures 2 to 4, 8, and 9, the bracket plug-in structure 201 has a socket 23 (see Figure 8). Correspondingly, the atomizer mounting structure has a plug 131 that mates with the socket 23. The plug 131 is inserted into the socket 23. In one embodiment, the socket 23 is located on the power supply bracket 2. In other embodiments, the atomizer mounting structure may also have a socket, and correspondingly, the fixed connection structure may have a plug that mates with the socket.

[0086] In one embodiment, referring to Figures 2 to 4, 8, and 9, the power supply bracket 2 and the atomizer 1 are secured by a snap-fit ​​connection. The plug 131 includes a snap 110, and the power supply bracket 2 has a snap hole 111 for the snap 110 to engage. In one embodiment, the snap 110 is provided on the plug 131.

[0087] To facilitate insertion, in one embodiment, referring to Figures 2 to 4, 8, and 9, one of the plug 131 and the receptacle 23 has a guide slot 24, and the other has a guide bar 132 that matches the guide slot 24. The guide bar 132 is inserted into the guide slot 24 to ensure that the plug 131 and the receptacle 23 are inserted and prevent rotation. The guide slot 24 has a guide section 241, the opening of which gradually narrows along the insertion direction of the atomizer 1.

[0088] In one embodiment, referring to FIG8 , the guide slot 24 is located on the wall of the socket 23 to guide the atomizer 1 into the socket 23. The guide slot 24 has a guide section 241. Along the insertion direction of the atomizer 1, the opening of the guide section 241 gradually decreases to guide the atomizer 1 to be plugged into the power supply bracket 2. The guide section 241 is a part of the guide slot 24. The distance between the two opposing groove walls in the guide section 241 gradually decreases at the slot opening. The atomizer housing 13 has a guide bar 132 adapted to the guide slot 24. After the atomizer 1 is connected to the power supply bracket 2, the guide bar 132 is located in the guide slot 24. The guide bar 132 and the guide slot 24 are prevented from rotating, so that the plug 131 can be plugged into the socket 23 and prevented from rotating, thereby allowing the atomizer 1 and the power supply bracket 2 to be plugged into each other at the correct angle.

[0089] In one embodiment, referring to FIG. 3 and FIG. 7 , there are two guide slots 24 , and the two guide slots 24 are arranged opposite to each other along the radial direction of the cylindrical shell.

[0090] In some other embodiments, the guide strip 132 may also have a guide section, and the guide section gradually increases along the insertion direction of the atomizer 1 .

[0091] In one embodiment, referring to Figures 2, 3, 9, and 11, the power supply unit 7 includes a puff sensing device 20. The puff sensing device 20 is used to sense the puff state of the aerosol generating device. The power supply 3 supplies power to the atomizer 1 of the aerosol generating device based on the sensing result of the puff sensing device 20. One end of the power supply unit 7 is remote from the first end 4101, and the other end is closer to the first end 4101. The puff sensing device 20 is located at the end of the power supply unit 7 remote from the first end 4101.

[0092] In one embodiment, the power supply unit 7 includes a circuit board 19, and a suction sensing device 20 is mounted on the circuit board 19. The suction sensing device 20 can sense whether the atomizer 1 is being puffed, and the power supply circuit between the power supply 3 and the electric heating element 12 is turned on and off in response to the sensing result of the suction sensing device 20, thereby controlling the electric heating element 12. When the mouthpiece 11 is being puffed, the suction sensing device 20 senses that the atomizer 1 is being puffed, and the power supply circuit is turned on in response to the sensing result, and the power supply 3 starts to supply power to the electric heating element 12, and the electric heating element 12 works to heat the aerosol-generating oil. When the mouthpiece 11 is not being puffed, the suction sensing device 20 senses that the atomizer 1 is not being puffed, and the power supply circuit is turned off in response to the sensing result, and the electric heating element 12 does not work. The host 10 includes a sensing device cover 15, and the sensing device cover 15 covers the suction sensing device 20.

[0093] The puff sensing device 20 is a sensor for sensing changes in gas pressure when the aerosol generating device is puffed. The sensor is located in the power supply circuit. After the gas pressure in the atomizer 1 drops to a target value, the sensor sends a connection signal, and the power supply circuit responds to the connection signal to connect the circuit. If the gas pressure in the atomizer 1 does not drop to the target value, the power supply circuit responds to the sensor and remains disconnected. In some other embodiments, in addition to gas pressure, the sensor can also sense changes in resistance, capacitance, voltage, etc. caused by puffing on the aerosol generating device to control whether to connect the power supply circuit.

[0094] In one embodiment, referring to Figures 9 to 11 , the power supply unit 7 includes an indicator light 5 , which is located at the end of the power supply unit 7 away from the first end 4101 . The power supply unit 7 also includes a light guide bar 6 , which extends to the first end 4101 of the cylindrical shell 41 . The bottom cover 42 is a light-transmitting bottom cover 42 . To prevent the light guide bar 6 from affecting the movement of the bottom cover 42 , a clearance is provided between the bottom cover 42 and the bottom end surface of the light guide bar 6 . In one embodiment, the indicator light 5 is fixed to the circuit board 19 . The light guide bar 6 is fixed to the power supply bracket 2 .

[0095] In one embodiment, the aerosol generating device of the present application is used as an electronic cigarette, which can be an electronic cigarette that heats the e-liquid or an electronic cigarette that heats the cigarette.

[0096] In some specific embodiments of an aerosol generating device, the aerosol generating device includes a main unit 10 and an atomizer 1. The atomizer 1 is used to heat and atomize an aerosol-generating substrate to generate an aerosol. The main unit 10 includes a power supply unit 7 and a housing assembly. The power supply unit 7 supplies power to the atomizer 1. The power supply unit 7 includes a power supply 3 and a controller. The power supply 3 outputs voltage and current in response to control signals output by the controller. The housing assembly 4 includes a cylindrical shell 41, which has a port for inserting and removing the power supply unit 7. The cylindrical shell 41 includes an atomizer mounting space 419 for inserting and removing the atomizer 1. The atomizer housing 13 includes an atomizer fixing structure, and the power supply unit 7 includes a fixed connection structure. The atomizer fixing structure is fixedly connected to the fixed connection structure. In this embodiment, the structures of the various components of the aerosol generating device can be the same as those described in any of the above embodiments.

[0097] In one embodiment, the shell assembly includes a bottom cover 42 connected to the first end 4101 of the cylindrical shell 41, and the port is located at the second end 4102 of the cylindrical shell 41. The atomizer 1 includes a locking structure 22, and the locking structure 22 is used to lock the power supply unit 7 and the shell assembly 4 to limit the displacement of the power supply unit 7 relative to the cylindrical shell 41. The locking structure 22 can adopt the locking method in the above-mentioned embodiment, or it can lock the power supply unit 7 and the bottom cover 42. In some other embodiments, the locking structure can be used to lock the atomizer 1 and the shell assembly to limit the displacement of the atomizer 1 relative to the cylindrical shell 41. Specifically, the locking structure can be arranged on the atomizer shell 13, and the locking structure can be locked with the cylindrical shell 41 using an elastic lock. In this embodiment, the structure of each component in the aerosol generating device can be the same as the structure of the parts described in any of the above-mentioned embodiments.

[0098] In some embodiments of the main body of the aerosol generating device, the main body of the aerosol generating device has the same structure as the main body in any of the above embodiments, and will not be described in detail.

Claims

1. A host of an aerosol generating device, characterized in that: The host comprises: A power supply unit, the power supply unit comprising a power supply and a controller, the power supply outputting a voltage and a current in response to a control signal output by the controller; A shell assembly, the shell assembly comprising a cylindrical shell and a bottom cover connected to a first end of the cylindrical shell, the second end of the cylindrical shell having a second port for loading or unloading the power supply unit; and a locking structure, wherein the locking structure is used to lock the power supply unit and the cylinder shell, or to lock the power supply unit and the bottom cover, so as to limit the displacement of the power supply unit relative to the cylinder shell.

2. The main unit of the aerosol generating device according to claim 1, characterized in that: The power supply unit comprises a power supply bracket, the power supply is arranged on the power supply bracket, the locking structure is at least partially arranged on the power supply bracket, and the locking structure is used to lock the power supply bracket and the cylindrical shell.

3. The main unit of the aerosol generating device according to claim 2, characterized in that: The power supply bracket has a bracket plug-in structure for plugging into the atomizer of the aerosol generating device.

4. The main unit of the aerosol generating device according to claim 1, characterized in that: The bottom cover is movably disposed at the first end of the cylindrical shell. The bottom cover has a first position and a second position relative to the cylindrical shell. When the bottom cover is in the second position, the bottom cover causes the locking structure to unlock the cylindrical shell; when the bottom cover is in the first position, the locking structure is locked with the cylindrical shell.

5. The main unit of the aerosol generating device according to claim 4, characterized in that: The bottom cover has a pushing portion; the pushing portion is used to push the power supply unit or the locking structure when the bottom cover is pressed from the first position to the second position, so as to unlock the power supply unit from the cylinder shell.

6. The main unit of the aerosol generating device according to claim 5, characterized in that: The power supply unit includes a power supply bracket, the power supply is configured on the power supply bracket, at least part of the locking structure is configured on the power supply bracket, and the locking structure is used to lock the power supply bracket and the cylinder shell; the pushing part pushes the locking structure to elastically deform the locking structure and then unlock it from the cylinder shell.

7. The main unit of the aerosol generating device according to claim 6, characterized in that: The locking structure includes a bracket locking arm and a bracket locking buckle at the end of the bracket locking arm, and the first end of the cylindrical shell has a locking buckle adapter structure that is locked with the bracket locking buckle; the pushing portion is used to push the bracket locking buckle so that the bracket locking arm is elastically deformed and then the bracket locking buckle and the locking buckle adapter structure are unlocked.

8. The main unit of the aerosol generating device according to claim 6 or 7, characterized in that: The bottom cover has a bottom cover stop structure; before the bottom cover is pressed to push the power supply bracket, the bottom cover stop structure and the cylinder shell are blocked to prevent the bottom cover from moving in a direction away from the power supply bracket.

9. The main unit of the aerosol generating device according to any one of claims 1 to 7, characterized in that: At least part of the locking structure is configured on the power supply unit, the locking structure includes a locking guide protrusion, and the cylindrical shell has a guiding slope facing the second port. When the locking structure is installed into the cylindrical shell along with the power supply unit, the guiding slope and the locking guide protrusion are slidably matched to guide the locking structure to lock the power supply unit and the cylindrical shell.

10. The main unit of the aerosol generating device according to claim 9, characterized in that: The bottom of the cylindrical shell is provided with a rotation-stopping groove, and the locking guide protrusion is inserted into the rotation-stopping groove after the locking structure locks the power supply unit and the cylindrical shell, thereby preventing the power supply unit from rotating.

11. The main unit of the aerosol generating device according to any one of claims 1 to 7, characterized in that: The power supply unit includes a suction sensing device, which is used to sense the suction state of the aerosol generating device, and the power supply supplies power to the atomizer of the aerosol generating device based on the sensing result of the suction sensing device; one end of the power supply unit is far away from the first end, and the other end is close to the first end, and the suction sensing device is located at the end of the power supply unit far away from the first end.

12. The main unit of the aerosol generating device according to any one of claims 1 to 7, characterized in that: The cylinder shell has an atomizer installation space for loading the atomizer of the aerosol generating device, and the power supply unit has a fixed connection structure for fixedly connecting with the atomizer of the aerosol generating device.

13. An aerosol generating device, characterized in that: The invention comprises a main unit and an atomizer, wherein the main unit is the main unit according to any one of claims 1 to 12; the power supply unit supplies power to the atomizer, and the atomizer is used to heat and atomize an aerosol-generating matrix to generate an aerosol.

14. The aerosol generating device according to claim 13, wherein: The aerosol generating device is a disposable aerosol generating device, the atomizer has an oil storage tank for storing aerosol generating oil, the atomizer includes an electric heating element, the power supply supplies power to the electric heating element, and the electric heating element is used to heat the aerosol generating oil to generate aerosol.

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