Host, atomization device and aerosol generating device

Abstract

The application relates to the aerosol technical field, in particular to a host, an atomization device and an aerosol generating device. The host comprises a shell, a spacer, an air inlet channel and a first electrode, one end of the shell forms an opening; the spacer is located in the shell and separates the internal space of the shell into a first cavity on the side away from the opening and a second cavity on the side of the opening; the air inlet channel is arranged in the first cavity and the spacer, the air inlet channel is in communication with external air through the first cavity, the air outlet end of the air inlet channel is in communication with the second cavity and protrudes from the end face of the spacer located in the second cavity; and the first electrode is arranged on the spacer and protrudes from the end face of the spacer located in the second cavity. The aerosol generating device takes in air through the air inlet channel, no longer depends on the gap at the connection between the atomization device and the host, and can realize the electrical connection and the air path connection between the host and the atomization device.

Description

Technical Field

[0001] The present application relates to the field of aerosol technology, and in particular to a host for an aerosol generating device, an atomizing device for an aerosol generating device, and an aerosol generating device. Background Art

[0002] As the harms of traditional cigarettes are gradually becoming recognized by the public, e-cigarettes have become increasingly accepted by smokers and are steadily expanding their market share. An e-cigarette is essentially an aerosol-generating device, connected to an atomizer via a main unit. The main unit's battery provides power to heat the heating element in the atomizer, atomizing the oil in the reservoir and producing an aerosol for the user to inhale.

[0003] Electronic cigarettes produce smoke by electrically atomizing the e-liquid. Electronic cigarettes require an airway for air circulation to carry the heated smoke to the air outlet. However, the air inlet of current electronic cigarettes is usually the connection between the atomizer and the host. The atomizer and the host are detachable structures, and the air inlet is a gap with a large area. As a result, the air inlet is not only long, but also has a dispersed air intake direction. The airflow cannot produce a good convergence effect, and the airflow stability is poor. When users inhale, they need to use a greater suction force to complete the air intake from the air inlet, which reduces the user experience.

[0004] In view of this, an air intake channel can be provided in the main unit to communicate with the air path structure in the atomizer, so that air can be taken in through the air intake channel, thereby eliminating the need for air to enter through the gap between the main unit and the atomizer. However, since an air intake channel for communicating with the atomizer is added to the main unit, the structure of the existing connection between the main unit and the atomizer needs to be improved accordingly to ensure both electrical and air connections between the main unit and the atomizer. Summary of the Invention

[0005] In view of this, an embodiment of the present invention provides a host, an atomizing device and an aerosol generating device for an aerosol generating device to solve the technical problem in the prior art that the electrical connection and the air path connection need to be improved accordingly after the air inlet channel is added to the host.

[0006] According to a first aspect of an embodiment of the present invention, a host for an aerosol generating device is provided, comprising:

[0007] a housing having an opening formed at one end;

[0008] an isolating member located in the shell and dividing the internal space of the shell into a first cavity facing away from the opening and a second cavity located on the side of the opening;

[0009] An air inlet channel is arranged in the first cavity and the partition, the air inlet channel is communicated with the outside air through the first cavity, and an air outlet end of the air inlet channel is communicated with the second cavity and protrudes from an end surface of the partition in the second cavity.

[0010] A first electrode is arranged on the partition and protrudes from the end surface of the partition in the second cavity, an air inlet end of the air inlet channel is a through hole arranged on a side wall of the first cavity, the through hole penetrates the shell, and the air inlet end is provided with a plurality of.

[0011] In a preferred embodiment of the host for the aerosol generating device according to the present application, the air outlet end of the air inlet channel is an air tube arranged on the host, and one end of the air tube extends in the direction of the second cavity.

[0012] In a preferred embodiment of the host for the aerosol generating device according to the present application, the air tube is a rigid tube.

[0013] In a preferred embodiment of the host for the aerosol generating device according to the present application, the air outlet end of the air tube is flush with the end surface of the first electrode.

[0014] In a preferred embodiment of the host for the aerosol generating device according to the present application, the length of the air tube extending into the second cavity is greater than the length of the first electrode extending into the second cavity.

[0015] In a preferred embodiment of the host for the aerosol generating device according to the present application, the first electrode and the air tube are each provided with two.

[0016] In a preferred embodiment of the host for the aerosol generating device according to the present application, the two air tubes are centrally symmetric with respect to the center of the end surface of the partition.

[0017] In a preferred embodiment of the host for the aerosol generating device according to the present application, the two first electrodes are centrally symmetric with respect to the center of the end surface of the partition.

[0018] In a preferred embodiment of the host for the aerosol generating device according to the present application, the first electrode is in the form of a spring needle.

[0019] According to a second aspect of the embodiments of the present application, an atomizing device for an aerosol generating device is provided, which is used to be connected with the host provided in the first aspect of the embodiments of the present application, the air inlet channel is used to be communicated with an air path structure in the atomizing device, and the first electrode is used to be electrically connected with a second electrode in the atomizing device.

[0020] In a preferred embodiment of the aerosol generating device according to the present application, the atomizing device has a third cavity for accommodating the air outlet end of the air inlet channel.

[0021] In a preferred embodiment of the aerosol generating device according to the present application, the air inlet end of the air path structure is provided on the second electrode.

[0022] In a preferred embodiment of the aerosol generating device according to the present application, the air inlet end of the air path structure is provided separately from the second electrode, and the air inlet end of the air path structure is in communication with the third cavity.

[0023] In a preferred embodiment of the aerosol generating device according to the present application, the air inlet end of the air path structure is provided separately from the second electrode, and the air inlet end of the air path structure is in direct communication with the air outlet end of the air inlet channel.

[0024] In a preferred embodiment of the aerosol generating device according to the present application, the atomizing device has a sealing portion for sealing the connection between the air inlet end of the air path structure and the air outlet end of the air inlet channel when the atomizing device and the main machine are in the assembled state.

[0025] According to a third aspect of the embodiments of the present application, there is provided an aerosol generating device comprising the main machine according to the first aspect of the embodiments of the present application and the atomizing device according to the second aspect of the embodiments of the present application.

[0026] The main machine, the atomizing device and the aerosol generating device provided by the embodiments of the present application have the following beneficial effects: the aerosol generating device takes in air through the air inlet channel provided in the main machine, so that the air inlet of the aerosol generating device is no longer dependent on the gap at the connection between the atomizing device and the main machine, and the air flow can be better converged through the independent air inlet channel, and the air flow is stable. The electrical connection between the main machine and the atomizing device is realized through the cooperation of the first electrode and the second electrode, and the air path connection between the main machine and the atomizing device is realized through the cooperation of the air outlet end of the air inlet channel and the air path structure. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and make the other features, purposes and advantages of the present application more apparent. The illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0028] Figure 1 FIG. 1 is a cross-sectional view of a first main machine for an aerosol generating device according to an embodiment of the present application;

[0029] Figure 2 for Figure 1 A partial enlarged view of part A;

[0030] Figure 3 A cross-sectional view of a first atomizing device for an aerosol generating device provided by an embodiment of the present invention;

[0031] Figure 4 A cross-sectional view of a first aerosol generating device provided by an embodiment of the present invention;

[0032] Figure 5 for Figure 4 A partial enlarged view of part B;

[0033] Figure 6 A cross-sectional view of a second main unit for an aerosol generating device provided by an embodiment of the present invention;

[0034] Figure 7 for Figure 6 A partial enlarged view of part C in the middle;

[0035] Figure 8 A cross-sectional view of a second atomizing device for an aerosol generating device provided by an embodiment of the present invention;

[0036] Figure 9 A cross-sectional view of a second aerosol generating device provided by an embodiment of the present invention;

[0037] Figure 10 for Figure 9 A partial enlarged view of section D; and

[0038] Figure 11 A three-dimensional structural diagram of an isolation component in a host provided by an embodiment of the present invention.

[0039] In the picture:

[0040] 100, main unit; 200, atomizing device; 300, air inlet channel; 400, air path structure;

[0041] 1. Atomizer core; 2. Suction nozzle; 3. Inhalation hole; 4. Power supply; 5. Control circuit board; 6. Air pipe; 7. First sealing member; 8. First groove; 9. Through hole; 10. First cavity; 11. Second cavity; 12. Shell; 13. Isolator; 14. Second groove; 15. Third groove; 16. Fourth groove; 17. Second sealing member; 18. Third sealing member; 19. First electrode; 20. Second electrode; 21. Microphone; 22. Microphone mounting base; 23. Sealing part; 24. Air outlet end of the air inlet channel; 25. Air inlet end of the air path structure; 26. Third cavity; 27. Enclosed space. DETAILED DESCRIPTION

[0042] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0043] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above-described drawings are intended to cover non-exclusive inclusion, for example, a system, product or device comprising a series of units does not have to be limited to only those clearly listed units, but can include units not clearly listed or inherent to these products or devices.

[0044] In the present application, the terms "upper", "lower", "inner", "middle", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0045] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For the person skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0046] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally constructed; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For the person skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific situation.

[0047] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0048] Reference Figures 1-11 As shown in the drawings, the aerosol generating device provided by the embodiments of the present application and the host 100 and the atomization device thereof. In an embodiment, the aerosol generating device can be in the form of an electronic cigarette or the like, of course, it can also be a medical atomization device applied in the medical field, etc., hereinafter, the aerosol generating device in the form of an electronic cigarette is taken as an example for description, which is not limited thereby.

[0049] The aerosol generating device is provided with an air path structure 400 in the atomization device 200. Specifically, the air path structure 400 of the atomization device 200 is provided with an atomization core 1, wherein the atomization core 1 is used to atomize the aerosol substrate (such as tobacco tar, liquid medicine, etc.) in the atomization device 200. When the user inhales, external gas enters the air path structure 400 of the atomization device 200 to carry the aerosol substrate atomized by the atomization core 1 in the air path structure 400 to the air inlet hole 3 at the mouthpiece 2 for the user to inhale. The atomization core 1 can be a porous heating body that absorbs the aerosol substrate by capillary force and generates heat to atomize the aerosol substrate. Preferably, the atomization core 1 can be a porous ceramic heating body or the like, which can further be provided with a heating film. Of course, in other embodiments of the present application, the atomization core 1 can also be a design of fiber cotton and heating wire combination, which is not limited here.

[0050] The main machine 100 of the aerosol generating device includes a shell 12, which is provided with a power supply 4 and a control circuit board 5. The main machine 100 is matched and connected with the atomization device 200, specifically, the atomization device 200 is detachably connected to the main machine 100. The power supply 4 in the main machine 100 and the atomization core 1 in the atomization device 200 are electrically connected with the control circuit board 5 in the main machine 100, for supplying power to the atomization core 1, and controlling the atomization core 1 to work when the user inhales, atomizing the aerosol substrate to form an aerosol for the user to inhale.

[0051] Since the atomization device 200 in the prior art is detachably connected to the main machine 100, after the atomization device 200 and the main machine 100 are matched to form a complete aerosol generating device, a gap is formed between the main machine 100 and the atomization device 200. When the aerosol generating device works, the path of the gas entering and discharging from the aerosol generating device is as follows: the air enters the air path structure 400 of the atomization device 200 from the gap between the atomization device 200 and the main machine 100; then enters the atomization core 1; then combines with the smoke after the aerosol substrate such as tobacco tar is atomized, and enters the mouthpiece 2 from the atomization core 1; finally, the air is inhaled into the mouth from the air inlet hole 3 in the mouthpiece (i.e. discharged from the aerosol generating device). The air inlet of the complete structure of the aerosol generating device is a gap with a large area, which not only has a long length, but also has a dispersed air inlet direction, so that the air flow cannot have a good convergence effect, the air flow stability is poor, and the user needs to use a large suction force to complete the air inlet from the air inlet during inhalation, which reduces the user experience.

[0052] In order to solve the above problems, as shown in Figures 1-5As shown, the main unit 100 for an aerosol generating device of the present invention includes a separator 13 and an air inlet channel 300. An opening is formed at one end of the housing 12 of the main unit 100; the separator 13 is located within the housing 12 and divides the interior space of the housing 12 into a first cavity 10 facing away from the opening and a second cavity 11 located toward the opening; the air inlet channel 300 is disposed within the first cavity 10 and the separator 13. The air inlet end of the air inlet channel 300 communicates with the outside air, while the air outlet end 24 of the air inlet channel communicates with the second cavity 11. An independent air inlet channel 300 is formed in the structure of the host 100, and the air inlet channel 300 is used to communicate with the air path structure 400 in the atomizer device 200. When the host 100 and the atomizer device 200 are assembled into an aerosol generating device, the gap between the atomizer device 200 and the host 100 is allowed to be sealed, so that the air inlet of the aerosol generating device no longer depends on the gap at the connection between the atomizer device 200 and the host 100. The independent air inlet channel 300 can produce a better convergence effect of the airflow, and the airflow is stable. When the user inhales, only a small suction force is needed to complete the air intake, thereby improving the user experience.

[0053] To achieve electrical connection between the main unit 100 and the atomizer 200, a first electrode 19 is provided on the isolator 13. The first electrode 19 protrudes from the end surface of the isolator 13 located in the second cavity 11. The first electrode 19 is electrically connected to the control circuit board 5 in the main unit 100. Correspondingly, a second electrode 20 is provided on the end surface of the atomizer 200 that mates with the main unit 100. The second electrode 20 is electrically connected to the atomizer core 1. When the main unit 100 and the atomizer 200 are assembled, the first electrode 19 and the second electrode 20 are matched and connected, thereby achieving electrical connection between the control circuit board 5 and the atomizer core 1.

[0054] In order to realize the connection between the host 100 and the atomization device 200, the outlet end 24 of the air inlet channel is an air pipe 6 arranged on the host 100, and one end of the air pipe 6 extends to the direction of the second cavity 11. The air pipe 6 can be used to isolate the air inlet channel 300 from the assembly gap. The air pipe 6 serves as a physical structure that can directly or indirectly communicate with the air path structure 400 on the atomization device 200, thereby isolating the air inlet channel 300 from the assembly gap and preventing external air from entering the gap between the atomization device 200 and the host 100, effectively realizing the convergence effect of air flow and improving user experience. One end of the air pipe 6 is connected to the isolation piece 13, and the other end extends to the direction of the atomization device 200 and is used to communicate with the air path structure 400. The connection of the air pipe 6 with the isolation piece 13 and the air path structure 400 can be achieved by insertion, and the air inlet end 25 of the isolation piece 13 and the air path structure can be made of elastic material to achieve better sealing effect after the air pipe 6 is inserted. More preferably, the air pipe 6 is a rigid pipe, and the material of the rigid pipe includes but is not limited to steel pipe, copper pipe, injection molded pipe and glass pipe. From the perspective of durability and availability of materials, the rigid pipe is preferably a steel pipe.

[0055] In the above embodiments, the air pipe 6 has a plurality of openings, which can be selectively or entirely arranged at the end of the air pipe 6, i.e. the axial top end of the air pipe 6, for axially introducing or leading out air flow; the openings can also be selectively or entirely arranged on the side wall of the air pipe 6, and are preferably arranged on the side surface near the axial top end of the air pipe 6 to guide air flow, for radially introducing or leading out air flow. The specific arrangement form of the openings is determined according to the arrangement mode of the air inlet channel 300 and the air path structure 400, and those skilled in the art can make corresponding adjustments.

[0056] In the above embodiments, the length of the air pipe 6 extending out of the end surface of the isolation piece 13 can be adjusted as needed. For example, in some embodiments, the outlet end of the air pipe 6 is flush with the end surface of the first electrode 19; for example, in some embodiments, the length of the air pipe 6 extending into the second cavity 11 is greater than the length of the first electrode 19 extending into the second cavity 11.

[0057] In some embodiments, as shown in Figure 5 and 10 The first electrode 19 on the host 100 and the second electrode 20 on the atomization device 200 are both provided with two, and when the host 100 and the atomization device 200 are assembled, the two first electrodes 19 and the two second electrodes 20 are matched and connected respectively.

[0058] In some embodiments, as shown in Figures 1-10As shown, the air inlet end of the air inlet channel 300 is a through hole 9 opened on the side wall of the first cavity 10, which penetrates the shell 12, and external air can be introduced into the air inlet channel 300 through the through hole 9. The air inlet channel 300 on the main machine 100 is provided with at least one air inlet end, that is, at least one through hole 9 is opened on the shell 12. By providing multiple air inlet channels 300 or air inlet ends, it can effectively prevent the aerosol generating device from being unable to work due to the blocking of part of the air inlet channels 300 or air inlet ends caused by misoperation or physical blocking, and improve the reliability of the product and the user experience. However, in order to avoid excessive dispersion of airflow, the number of air inlet channels 300 and air inlet ends should not be too large. For example, in the drawings of the present application, the main machine 100 of the aerosol generating device is provided with two air inlet channels 300, each of which has an air inlet end, that is, a through hole 9 is opened on the side wall of the shell 12 of the main machine 100. The two through holes 9 are symmetrically arranged on both sides of the main machine 100, and each of the two air inlet channels 300 has an air outlet end, that is, each of the two air inlet channels 300 is provided with a gas pipe 6.

[0059] On the basis of the above-mentioned embodiments, the two gas pipes 6 are centrally symmetric with the center of the end face of the isolation piece 13, and the two first electrodes 19 are centrally symmetric with the center of the end face of the isolation piece 13. Similarly, the two second electrodes 20 are arranged on the atomization device 200 corresponding to the positions of the two first electrodes 19.

[0060] In some embodiments, as shown in Figs. Figure 5 、 10 and 11, the outer wall of the isolation piece 13 is circumferentially provided with a second groove 14, the outer wall of the isolation piece 13 is connected with the inner wall of the shell 12 of the main machine 100, the space defined by the second groove 14 and the inner wall of the shell 12 is part of the first cavity 10 and part of the air inlet channel 300, and external air enters the second groove 14 through the through hole 9 on the shell 12, and then enters the inside of the isolation piece 13 and passes through the isolation piece 13. Designing the first cavity 10 in the form of the second groove 14 can further converge the airflow and improve the user experience.

[0061] Optionally, in the above embodiments, in order to realize the sealing of the first cavity 10, the isolation piece 13 can be designed as an elastic structure, and the sealing between the outer wall of the isolation piece 13 and the inner wall of the shell 12 is realized by interference fit between the isolation piece 13 and the shell 12.

[0062] Optionally, in the above embodiment, in order to achieve the sealing of the first cavity 10, a third groove 15 and a fourth groove 16 can be circumferentially arranged on the outer wall of the isolation member 13. The third groove 15 and the fourth groove 16 are respectively located on the upper and lower sides of the second groove 14, and a second seal 17 is arranged in the third groove 15, and a third seal 18 is arranged in the fourth groove 16. The second seal 17 and the third seal 18 can improve the sealing between the isolation member 13 and the shell 12. The second seal 17 and the third seal 18 are preferably sealing rings.

[0063] In the above embodiments, the communication mode between the air outlet end 24 of the air inlet channel and the air path structure 400 in the atomizing device 200 may be in various forms.

[0064] Alternatively, as Figures 6-10 As shown, after the atomizing device 200 and the host 100 are assembled to form an aerosol generating device, the atomizing device 200 is inserted into the first cavity 10 through the opening of the housing 12 of the host 100, and a closed space 27 is formed between the atomizing device 200 and the host 100. The closed space 27 can be completely located in the first cavity 10 or partially overlap with the first cavity 10. The first electrode 19 and the outlet end 24 of the air inlet channel are both extended into the closed space 27. The third cavity 26 and the air path structure 400 of the atomizing device 200 are connected. The first electrode 19 is connected to the second electrode 20 in a matching manner. The outlet end 24 of the air inlet channel and the air inlet end 25 of the air path structure in the atomizing device 200 are both connected to the closed space 27. External air can enter the air path structure 400 through the air inlet channel 300 and the closed space 27 in sequence. This design eliminates the need to completely align the air inlet end 25 of the air path structure in the atomizing device 200 with the outlet end 24 of the air inlet channel. The design positions of the various structures on the atomizing device 200 and the host 100 are more flexible. In this embodiment, a third cavity 26 can be provided at one end of the atomizing device 200 that mates with the host 100. When the atomizing device 200 is mated with the host 100, the third cavity 26 and the first cavity 10 together form the above-mentioned closed space 27. The third cavity 26 of the atomizing device 200 can be used to accommodate the outlet end 24 of the air inlet channel. It should be noted that the third cavity 26 can be used only to accommodate the air outlet end 24 of the air inlet channel, and its size and number can be specifically determined according to the structural specifications of the actual product, as long as the above-mentioned purpose of the invention can be achieved.

[0065] The closed space 27 needs to avoid the communication of external air through the gap at the connection between the atomization device 200 and the main machine 100. A first groove 8 can be arranged circumferentially on the inner wall of the second cavity 11, and a first sealing element 7 can be sleeved on the outer wall of the atomization device 200. After the atomization device 200 is inserted into the second cavity 11 of the main machine 100 to assemble into an aerosol generating device, the first sealing element 7 can be matched and embedded into the first groove 8 on the inner wall of the second cavity 11 to enhance the sealing effect. The first sealing element 7 is preferably a sealing ring.

[0066] Optionally, after the atomization device 200 and the main machine 100 are assembled into an aerosol generating device, the atomization device 200 is inserted into the first cavity 10 from the opening of the main machine 100 shell 12, the first electrode 19 and the second electrode 20 are matched and connected, and the air outlet end 24 of the air inlet channel and the air inlet end 25 of the air path structure in the atomization device 200 are directly communicated. That is, when the air outlet end 24 of the air inlet channel is the air tube 6, the end of the air tube 6 can be directly inserted into the air inlet end 25 of the air path structure in the atomization device 200. External air can enter the air path structure 400 directly through the air inlet channel 300, and the air path and the assembly gap are also isolated through the air tube 6. This design needs to design the position of the air inlet end 25 of the air path structure in the atomization device 200 to be opposite to the air outlet end 24 of the air inlet channel, so as to realize the matched connection of the two. Although an additional matching structure is added, the insertion and cooperation between the air tube 6 and the atomization device 200 make the connection between the atomization device 200 and the main machine 100 more firm. In this embodiment, the skilled person can determine whether to set the closed space 27 mentioned in the foregoing embodiments according to actual needs.

[0067] Optionally, as Figure 3 and 5As shown, the air inlet end 25 of the air path structure in the atomization device 200 is arranged on the second electrode 20 and penetrates the second electrode 20. The second electrode 20 simultaneously plays the roles of conducting electricity and conducting air flow, and the air inlet end 25 of the air path structure can be arranged at other positions of the atomization device 200, which can reduce the redundancy in design and assembly and improve the simplicity of the structural design. In the embodiment, the air inlet end 25 of the air path structure can be communicated with the closed space 27 mentioned in the foregoing embodiments, and the air outlet end 24 of the air inlet channel can also be directly communicated with the air inlet end 25 of the air path structure. The skilled person can select according to the design requirements. In the case where the air outlet end 24 of the air inlet channel is directly communicated with the air inlet end 25 of the air path structure, in order to avoid interference between the first electrode 19 and the air outlet end 24 of the air inlet channel and the second electrode 20, the first electrode 19 is preferably a needle structure, and the second electrode 20 is preferably an electrode nail. The electrode nail has an inverted T-shaped cross section and has a large electrode sheet. The air inlet end 25 of the air path structure penetrates the middle position of the electrode nail, and the first electrode 19 only needs to abut against any position of the electrode nail.

[0068] It should be noted that the air inlet end 25 of the air path structure is integrally arranged with the second electrode 20, which is only a preferred embodiment. The skilled person can still select the technical solution of separating the air inlet end 25 of the air path structure from the second electrode 20 according to the requirements in some other embodiments. The air inlet end 25 of the air path structure is communicated with the air outlet end 24 of the air inlet channel through the closed space 27 or the air inlet end 25 of the air path structure is directly communicated with the air outlet end 24 of the air inlet channel.

[0069] In the above embodiment, in the case where the air outlet end 24 of the air inlet channel in the host 100 is directly connected with the air inlet end 25 of the air path structure in the atomization device 200, the atomization device 200 is provided with a sealing part 23. In the assembled state of the atomization device 200 and the host 100, the sealing part 23 is used to seal the connection between the air inlet end 25 of the air path structure and the air outlet end 24 of the air inlet channel. In the case where the second electrode 20 is integrally arranged with the air inlet end 25 of the air path structure, the sealing part 23 can also be used for sealing connection between the second electrode 20 and other parts of the air path structure 400. The material of the sealing part 23 is preferably a silica gel part.

[0070] In some embodiments, the main unit 100 of the aerosol generating device further includes a microphone 21, which is used to detect the air circulation movement within the air inlet channel 300. A microphone mounting base 22 is provided within the main unit 100, and the material of the microphone mounting base 22 is preferably silicone. The microphone 21 is fixed in the microphone mounting base 22 and is electrically connected to the control circuit board 5. Specifically, the power supply 4 can supply power to the atomizer core 1, and the air flow channel is connected to the microphone 21. The microphone 21 can generate changes in electrical parameters due to the negative pressure generated by the changes in the air flow inside the air flow channel, and the output sensing signal is transmitted to the control circuit board 5. The control circuit board 5 controls the power supply of the atomizer core 1 based on the sensing signal, so that when the user smokes through the mouthpiece 2, the power supply 4 can be controlled to supply power to the atomizer core 1 to atomize the tobacco liquid. When the user stops smoking, the power supply to the atomizer core 1 is stopped, causing the atomizer core 1 to stop heating. The air inlet channel 300 in the embodiment of the present application makes the airflow more concentrated, making the microphone 21 more sensitive and accurate in sensing the airflow.

[0071] It should be noted that the other structures and operations of the host 100 and the atomizing device 200 for the aerosol generating device provided in the embodiment of the present invention are known to ordinary technicians in this field, and can refer to the structures of related devices in the prior art, and will not be described in detail here.

[0072] The embodiment of the present application also provides an aerosol generating device, which includes the atomizing device 200 provided in the above embodiment of the present application and the host 100 provided in the above embodiment of the present application, the atomizing device 200 is matched and connected with the second cavity 11, and the air inlet channel 300 in the host 100 is connected with the air path structure 400 in the atomizing device 200. The technical features of the atomizing device 200 and the host 100 can be referred to the above description, which will not be repeated here. Since the aerosol generating device disclosed in the embodiment of the present application includes the host 100 and the atomizing device 200 provided in the above embodiment, the aerosol generating device having the host 100 and the atomizing device 200 also has all the above-mentioned technical effects, which will not be repeated here one by one. The other structures and operations of the aerosol generating device are known to ordinary technicians in this field and will not be described in detail here.

[0073] Some embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0074] The foregoing is considered as illustrative of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and it is intended to embody these modifications and changes into the scope of the application insofar as they fall within the scope of the appended claims.

Claims

1. A host for an aerosol generating device, characterized in that: include: a housing having an opening formed at one end; an isolating member located in the shell and dividing the internal space of the shell into a first cavity facing away from the opening and a second cavity located on the side of the opening; an air inlet passage, disposed within the first cavity and the isolating member, the air inlet passage communicating with external air through the first cavity, an air outlet end of the air inlet passage communicating with the second cavity and protruding from an end surface of the isolating member located in the second cavity; as well as a first electrode, disposed on the separator and protruding from the separator and located on an end surface of the second cavity; an inlet end of the inlet channel is a through hole formed on a side wall of the first cavity, the through hole passing through the housing; and a plurality of inlet ends are provided; The inner wall of the second cavity is formed with a first groove arranged circumferentially, and the first groove is used to match and embed the first sealing member provided on the outer wall of the atomizing device into the first groove when the atomizing device and the main unit are in an assembled state; The outlet end of the air inlet channel is an air pipe provided on the main unit, one end of the air pipe is connected to the isolator, and the other end extends toward the second cavity and is used to directly communicate with the air path structure of the atomizer; the air pipe is connected to the isolator and the air path structure of the atomizer respectively by plugging; A second groove is circumferentially provided on the outer wall of the isolation member, and the outer wall of the isolation member is fitly connected to the inner wall of the main body shell. The space defined by the second groove and the inner wall of the shell is part of the first cavity and is also part of the air intake channel. External air enters the second groove through the air intake end, and then enters the interior of the isolation member from the second groove and passes through the isolation member.

2. The host according to claim 1, wherein: The trachea is a rigid tube.

3. The host according to claim 1, wherein: The gas outlet end of the gas pipe is flush with the end surface of the first electrode.

4. The host according to claim 1, wherein: The length of the trachea extending into the second cavity is greater than the length of the first electrode extending into the second cavity.

5. The host according to claim 1, wherein: There are two of each of the first electrodes and the air tube.

6. The host according to claim 5, characterized in that The two air pipes are centrally symmetrical about the center of the end surface of the isolation piece.

7. The host according to claim 5, characterized in that The two first electrodes are centrally symmetrical about the center of the end surface of the isolation member.

8. The host according to claim 1, wherein: The first electrode is a spring-pin structure.

9. An aerosol generating device, characterized in that: It comprises an atomizing device and a host according to any one of claims 1 to 8; the atomizing device is used to match and connect with the host, the air inlet channel is used to communicate with the air path structure in the atomizing device, and the first electrode is used to be electrically connected to the second electrode in the atomizing device.

10. The aerosol generating device according to claim 9, characterized in that: The air inlet end of the air path structure is opened on the second electrode.

11. The aerosol generating device according to claim 9, characterized in that: The air inlet end of the air path structure is separately provided from the second electrode, and the air inlet end of the air path structure is used to be directly connected to the air outlet end of the air inlet channel.

12. The aerosol generating device according to any one of claims 10-11, characterized in that: The atomizing device has a sealing portion, and when the atomizing device and the main unit are in an assembled state, the sealing portion is used to achieve sealing at the connection between the air inlet end of the air path structure and the air outlet end of the air inlet channel.

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