An aerosol generating device

Abstract

The present invention discloses an aerosol generating device, comprising: a shell having an inner cavity, wherein an aerosol passage is formed in the inner cavity; a porous body storing smoke liquid, wherein the porous body is installed in the inner cavity; a heating element, wherein the heating element is arranged around the porous body, or the heating element is inserted in the porous body, wherein the porous body can transport the stored smoke liquid to the heating element, wherein the heating element is used to atomize the smoke liquid transported by the porous body after being powered on; and a mouthpiece having a product inhalation port connected to the aerosol passage, wherein the mouthpiece is connected to the shell, wherein the aerosol generated by the atomization of the smoke liquid can flow into the aerosol passage and then flow out from the product inhalation port. The present invention can realize that the aerosol generating device atomizes aerosol generating substrates having no fixed form.

Description

Technical Field

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

[0002] As people pay more and more attention to health, they realize that traditional cigarettes are harmful to health. Therefore, a product called "aerosol generating device" has been produced. As a substitute for traditional cigarettes, it is essentially a product that generates smoke by atomizing liquid. While meeting the physiological needs of users, aerosol generating devices avoid harmful substances such as tar and carbon monoxide brought by traditional cigarettes.

[0003] The atomizer of the traditional aerosol generating device uses a cavity to store oil or oil storage cotton to store oil. The cavity oil storage structure is prone to oil leakage. The oil storage cotton structure is not resistant to high temperatures. When the smoke oil is insufficient, dry burning will produce harmful substances.

[0004] In addition, the existing aerosol generating device can also heat the aerosol-forming substrate (solid state) through a heater, and the generated aerosol is inhaled by the user. That is, the existing aerosol generating device can only atomize the aerosol generating substrate of a fixed form, and cannot atomize the aerosol generating substrate of a non-fixed form. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing aerosol generating device cannot atomize an aerosol generating substrate with no fixed shape. The present invention provides an aerosol generating device, which uses a porous body as a liquid storage, and uses the liquid conducting properties of the porous body itself to make it an integrated structure with both liquid storage and liquid conducting. The heating element of the aerosol generating device atomizes the smoke liquid stored in the porous body, so that the aerosol generating device can atomize an aerosol generating substrate with no fixed shape.

[0006] To solve the above technical problems, an embodiment of the present invention discloses an aerosol generating device, comprising: an outer shell, having an inner cavity, in which an aerosol channel is formed; a porous body, storing smoke liquid, and the porous body is installed in the inner cavity; a heating element, the heating element is arranged around the porous body, or the heating element is inserted into the porous body, the porous body can transport the stored smoke liquid to the heating element, and the heating element is used to atomize the smoke liquid transported by the porous body after power is turned on; a mouthpiece, having a product suction port connected to the aerosol channel, the mouthpiece is connected to the outer shell, and the aerosol generated by the atomization of the smoke liquid can flow into the aerosol channel and then flow out from the product suction port.

[0007] By adopting the above technical solution, it is possible to fully prevent the occurrence of liquid leakage problems, avoid the risk of producing harmful substances during high-temperature dry burning, and also enable the aerosol generating device to atomize an aerosol generating matrix with no fixed shape.

[0008] According to another specific embodiment of the present invention, the porous body has an opening extending along a first direction, and the heating element extends along the first direction and is inserted into the opening along the first direction.

[0009] According to another specific embodiment of the present invention, the opening is a through hole that penetrates the porous body along the first direction.

[0010] According to another specific embodiment of the present invention, the heating body includes: a heating bulkhead and a heating component, the heating bulkhead surrounds the porous body and is in at least partial or complete contact with the porous body, and the heating component is connected to the heating bulkhead.

[0011] According to another specific embodiment of the present invention, the heat generating component is welded, embedded or printed on the heat generating bulkhead.

[0012] According to another specific embodiment of the present invention, the heating component includes one of the following: a metal heating tube, an electromagnetic heating coil, a resistance wire, a flexible heating film, a printed circuit layer, a heating net, a ceramic heating sleeve, or a felt of metal wire.

[0013] According to another specific embodiment of the present invention, the heating cabin wall is a ceramic body, a combination of ceramic and metal, or a combination of ceramic and plastic.

[0014] According to another specific embodiment of the present invention, a heat insulating member is provided in the housing.

[0015] According to another specific embodiment of the present invention, the thermal insulation element is arranged around the porous body.

[0016] According to another specific embodiment of the present invention, more than 70% of the pores in the porous body have a pore size of 10 μm to 495 μm.

[0017] According to another specific embodiment of the present invention, after the porous body transports part of the smoke liquid to the heating element, the remaining smoke liquid in the porous body can be redistributed evenly in the porous body under the action of capillary force.

[0018] According to another specific embodiment of the present invention, the porous body is columnar and extends along the first direction.

[0019] According to another specific embodiment of the present invention, the material of the porous body includes alumina, hydroxyapatite, and metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of an atomizer according to an embodiment of the present invention is shown;

[0021] Figure 2A three-dimensional diagram showing a porous body in an atomizer according to an embodiment of the present invention Figure 1 ;

[0022] Figure 3 A three-dimensional diagram showing a porous body in an atomizer according to an embodiment of the present invention Figure 2

[0023] Figure 4 A three-dimensional diagram showing a porous body in an atomizer according to an embodiment of the present invention Figure 3 ;

[0024] Figure 5 A three-dimensional diagram showing a porous body in an atomizer according to an embodiment of the present invention Figure 4 ;

[0025] Figure 6 A three-dimensional diagram showing a porous body in an atomizer according to an embodiment of the present invention Figure 5 ;

[0026] Figure 7 A cross-sectional view showing an aerosol generating device according to an embodiment of the present invention Figure 1 ;

[0027] Figure 8 A cross-sectional view showing an aerosol generating device according to an embodiment of the present invention Figure 2 ;

[0028] Fig. 9 A cross-sectional view showing an aerosol generating device according to an embodiment of the present invention Figure 3 ;

[0029] Fig.10 A cross-sectional view showing an aerosol generating device according to an embodiment of the present invention Figure 4 ;

[0030] Fig.11 A schematic diagram showing the connection between the nozzle and the porous body in the aerosol generating device according to an embodiment of the present invention;

[0031] Fig.12 A three-dimensional diagram showing a fluid replenishment device according to an embodiment of the present invention Figure 1 ;

[0032] Fig.13 A cross-sectional view showing a fluid replenishment device according to an embodiment of the present invention Figure 1 ;

[0033] Fig.14 A cross-sectional view showing a fluid replenishment device according to an embodiment of the present invention Figure 2 ;

[0034] Fig.15 A three-dimensional diagram showing a fluid replenishment device according to an embodiment of the present invention Figure 2 ;

[0035] Fig.16 A cross-sectional view showing a fluid replenishment device according to an embodiment of the present invention Figure 3 . DETAILED DESCRIPTION

[0036] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0037] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0038] In the description of this embodiment, it should be noted that the orientation or position relationship indicated by the terms "inside" and "bottom" is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0040] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] refer to Figure 1The present invention provides an atomizer installed in an aerosol generating device. It includes: a porous body 10, which stores smoke liquid, and the porous body 10 absorbs liquid like a "sponge"; a heating element 20, and the porous body 10 can transport the stored smoke liquid to the heating element 20, and the heating element 20 is used to atomize the smoke liquid transported by the porous body 10 after power is turned on. That is, the present invention uses the porous body 10 as a liquid storage, and at the same time utilizes the liquid conducting characteristics of the porous body 10 itself to make it into an integrated structure with both liquid storage and liquid conducting, while fully preventing the occurrence of liquid leakage problems, and avoiding the risk of producing harmful substances during high-temperature dry burning. In other words, the atomizer of the present invention is an integrated storage and conduction structure. The number of components of the atomizer is reduced, and the liquid storage function and the liquid conducting function are integrated on the porous body 10.

[0043] In addition, since the porous body 10 is used to store and guide liquid, after the porous body 10 transports part of the smoke liquid to the heating element 20, the remaining smoke liquid in the porous body 10 can be redistributed evenly in the porous body 10 under the action of capillary force. Therefore, when the user uses the aerosol generating device, he is not restricted by the holding direction. After the user holds the aerosol generating device, he can perform the suction action in any direction. For example, the aerosol generating device is inverted, placed horizontally, tilted, etc., which improves the user's suction experience. The porous body 10 realizes the self-conducting liquid balancing effect, so as to maintain a good liquid supply state during the next atomization, so that the porous body 10 remains moistened to prevent dry burning. As a preferred embodiment of the present invention, the opening direction of the porous body 10 is the direction in which the smoke liquid is transported.

[0044] The material of the porous body 10 is not limited, and may be alumina, hydroxyapatite, metal powder, etc. As a preferred embodiment of the present invention, more than 70% of the pores on the porous body 10 have a pore size of 10 μm to 495 μm, such as 111.5 μm, 253.2 μm, 346.6 μm, etc., but the pore size range is not limited thereto, as long as the porous body 10 has good liquid adsorption and liquid conduction capabilities.

[0045] The connection method between the heating element 20 and the porous body 10 of the present invention is not limited, and the following conditions can be met: the porous body 10 can transport the stored smoke liquid to the heating element 20, and the heating element 20 atomizes the smoke liquid transported by the porous body 10 after being energized.

[0046] As a preferred embodiment of the present invention, refer to Figure 1 The heating element 20 and the porous body 10 are arranged along a first direction ( Figure 1The porous body 10 is arranged relative to the heating element 20 (in the X direction), and the first direction is the direction in which the smoke liquid is transported. As a preferred embodiment of the present invention, the porous body 10 extends along the first direction. That is, the porous body 10 is separated from the heating element 20 and assembled. The porous body 10 itself does not have a heating part, and the heating element 20 is outside and in contact with the porous body 10.

[0047] As a preferred embodiment of the present invention, a flexible liquid-conducting member 30 is provided between the porous body 10 and the heating element 20, and the flexible liquid-conducting member 30 is in contact with the porous body 10 and the heating element 20 respectively. The existence of the flexible liquid-conducting member 30 can ensure sufficient contact between the heating element 20 and the porous body 10. As a preferred embodiment of the present invention, the material of the flexible liquid-conducting member 30 includes a felt-like material of glass fiber or cotton or metal wire. The specific form of the heating element 20 is not limited, as long as it can generate heat after being powered on. As a preferred embodiment of the present invention, the heating element 20 can be in the form of a sheet, a mesh, or a coiled filament. Nickel-cadmium alloy, stainless steel, or a ceramic sheet with embedded heating wire can be used.

[0048] As a preferred embodiment of the present invention, refer to Figure 2 The heating element 20 is a printed circuit or a conductive heating coating, which is disposed at one end of the porous body 10. In this embodiment, the heating element 20 is disposed in the first direction ( Figure 2 That is, the conductive heating coating can be made of nickel, nickel-cadmium alloy, stainless steel and other materials. This solution does not need to use the flexible liquid guide 30. The conductive part can be a lead-out wire, or a contact, or connected using a pin. As a preferred embodiment of the present invention, the conductive part includes a first conductor 21 and a second conductor 22. In this embodiment, the first conductor 13 and the second conductor 14 are wires. After the first conductor 21 and the second conductor 22 are energized, the heating element 20 can atomize the smoke liquid transported by the porous body 10 to form smoke for inhalation.

[0049] As a preferred embodiment of the present invention, refer to Figure 3 and Figure 4 The heating element 20 is at least partially or completely buried in the porous body 10 .

[0050] As a preferred embodiment of the present invention, refer to Figure 3 and Figure 4 The porous body 10 has a first direction ( Figure 3 and Figure 4The opening 11 extends (as shown in the X direction), and the heating element 20 is arranged in the opening 11. As a preferred embodiment of the present invention, the heating element 20 is coiled around the opening 11, and can also be arranged at one end of the porous body 10. The porous body 10 of this scheme may not use the flexible liquid guide 30. The conductive part can be a lead-out wire, or a contact, or connected using a pin. As a preferred embodiment of the present invention, the conductive part includes a first conductor 21 and a second conductor 22. In this embodiment, the first conductor 13 and the second conductor 14 are wires. After the heating element 20 is energized through the first conductor 21 and the second conductor 22, it can atomize the smoke liquid transported by the porous body 10 to form smoke for inhalation.

[0051] As a preferred embodiment of the present invention, refer to Figure 3 , the opening 11 is along the first direction ( Figure 3 As a preferred embodiment of the present invention, refer to Figure 5 , the opening 11 does not penetrate the porous body 10 along the first direction.

[0052] It should be noted that the shape of the porous body 10 of the present invention is not limited. In this embodiment, as a preferred embodiment of the present invention, reference Figures 1 to 5 The porous body 10 is columnar and along the first direction ( Figures 1 to 5 In other embodiments, the porous body 10 may be rectangular, cubic, spherical, etc., and may be selected according to the application scenario of the porous body 10. As a preferred embodiment of the present invention, the porous body 10 is irregular. For example, referring to Figure 6 The porous body 10 is composed of two cylindrical parts with different diameters.

[0053] Continue to refer Figure 1 The atomizer of the present invention further comprises: a housing 40 having an inner cavity, wherein an aerosol passage is formed in the inner cavity, wherein the porous body 10 is mounted in the inner cavity; and a mouthpiece 50 having a product inhalation port 51 connected to the aerosol passage, wherein the mouthpiece is connected to the housing 40, and the aerosol generated by the atomization of the smoke liquid can flow into the aerosol passage and then flow out from the product inhalation port 51. The connection method between the mouthpiece and the housing 40 is not limited, and any connection can be achieved, such as a threaded connection.

[0054] As a preferred embodiment of the present invention, Figure 1 As shown, the porous body 10 transmits smoke liquid to the heating element 20. Figure 1 Path A in the middle shows the direction of transmission of the smoke liquid; the heating element 20 is energized to atomize the smoke liquid, and the aerosol generated by the atomized smoke liquid can flow into the aerosol channel and then flow out from the inhalation port 51; Figure 1 Path B in the middle shows the flow direction of the aerosol.

[0055] Among them, the porous body 10 is accommodated in the mounting part 60, and the mounting part 60 is installed on the outer shell 40 through the mounting base 70. The connection form between the mounting base 70 and the mounting part 60 is not limited, and it can be connected, such as threaded connection and welding; the connection mode between the mounting base 70 and the outer shell 40 is not limited, and it can be connected, such as threaded connection.

[0056] In addition, a connection electrode 80 is provided at one end of the housing 40, and the connection electrode 80 and the suction nozzle 50 are located at opposite ends of the housing 40. The heating element 20 is electrically connected to the connection electrode 80.

[0057] The present invention further provides an aerosol generating device 1, comprising: an atomizer as described in any of the above embodiments; and a power source (not shown), the heating element 20 being electrically connected to the power source to supply power to the heating element 20. As a preferred embodiment of the present invention, the power source is electrically connected to the connecting electrode 80.

[0058] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 7 and Figure 8 The present invention further provides an aerosol generating device 1, comprising: a housing 40 having an inner cavity, wherein an aerosol passage is formed in the inner cavity; a porous body 10 as described in any of the above embodiments, storing smoke liquid, wherein the porous body 10 is installed in the inner cavity; a heating element 20, wherein the heating element 20 is arranged around the porous body 10 (refer to Figure 7 ), or the heating element 20 is inserted into the porous body 10 (refer to Figure 8 ), the porous body 10 can transport the stored smoke liquid to the heating element 20, and the heating element 20 is used to atomize the smoke liquid transported by the porous body 10 after being powered on; the suction nozzle 50 has a product suction port 51 connected to the aerosol channel, and the suction nozzle is connected to the shell 40. The aerosol generated by the atomization of the smoke liquid can flow into the aerosol channel and then flow out from the product suction port 51.

[0059] Equivalently, after the porous body 10 of the present invention stores the smoke liquid with no fixed shape, the heating element 20 atomizes the aerosol with no fixed shape to generate a matrix (smoke liquid), and the heating method of the smoke liquid can be external heating or internal heating, thereby improving the user's smoking experience.

[0060] As a preferred embodiment of the present invention, refer to Figure 8 and Fig. 9 The porous body 10 has a first direction ( Figure 8 and Fig. 9The heating element 20 extends along the first direction and is inserted into the opening 11 along the first direction. As a preferred embodiment of the present invention, the heating element 20 is needle-shaped, column-shaped or sheet-shaped.

[0061] As a preferred embodiment of the present invention, refer to Figure 3 The opening 11 is a through hole that penetrates the porous body 10 along the first direction.

[0062] As a preferred embodiment of the present invention, refer to Figure 7 and Fig.10 The heating element 20 includes: a heating bulkhead 23 and a heating component 25. The heating bulkhead 23 surrounds the porous body 10 and is in at least partial or complete contact with the porous body 10. The heating component 25 is connected to the heating bulkhead 23. That is, the heating component 25 generates heat and conducts heat to the heating bulkhead 23, and the heating bulkhead 23 conducts heat to the porous body 10 to achieve atomization of the smoke liquid and generate aerosol.

[0063] There is no restriction on the connection mode between the heating component 25 and the heating bulkhead 23, as long as heat conduction can be achieved. As a preferred embodiment of the present invention, the heating component 25 is welded, embedded or printed on the heating bulkhead 23. As a preferred embodiment of the present invention, the heating component 25 is welded, embedded or printed on the inner side, outer side or body of the heating bulkhead 23. As a preferred embodiment of the present invention, the heating component 25 is assembled and contacted with the heating bulkhead 23.

[0064] As a preferred embodiment of the present invention, the heating component 25 includes one of the following: a metal heating tube, an electromagnetic heating coil, a resistance wire, a flexible heating film, a printed circuit layer, a heating net, a ceramic heating sleeve or a felt of metal wire. The heating component 25 can also be other components that can generate heat when powered on.

[0065] As a preferred embodiment of the present invention, the heating bulkhead 23 is a ceramic body, a ceramic and metal combination, or a ceramic and plastic combination. Considering safety, the metal here needs to be a stainless steel material that meets food grade requirements, and the plastic needs to be a material such as PEEK that meets food grade requirements and is resistant to high temperatures.

[0066] As a preferred embodiment of the present invention, refer to Fig. 9 and Fig.10, a heat insulating member 24 is provided in the shell 40 to keep warm and prevent scalding. As a preferred embodiment of the present invention, the heat insulating member 24 is arranged around the porous body 20. As a preferred embodiment of the present invention, the heat insulating member 24 is in contact with the heating element 20 and the shell 40 respectively. As a preferred embodiment of the present invention, the heat insulating member 24 is heat insulating cotton.

[0067] As a preferred embodiment of the present invention, the housing 40 is made of plastic or metal, and can be made of stainless steel, ABS, PP, PC, PPSU and the like. The mouthpiece 50 is made of plastic, and can be made of ABS, PP, PC, PPSU, PETG and the like. The housing 40 of the aerosol generating device 1 can be an integrated type or a split type, and the housing 40 includes a cigarette rod and a cigarette cartridge, see Figure 7 and Figure 8 , wherein the cigarette rod part is provided with a control circuit board 92, a switch 91, an electrode 90, a power supply 93, and a charging interface 94, the switch 91 is connected to the control circuit board 92, and the electrode 90 is connected to the heating element 20; Figure 1 , Fig. 9 and Fig.10 The cigarette cartridge part is provided with the suction nozzle 50, the porous body 10, the heating element 20 and other components described in any of the aforementioned embodiments.

[0068] The connection method between the nozzle 50 and the cigarette cartridge includes but is not limited to magnetic connection, thread connection, snap connection, etc., and can be disassembled by the user. The cigarette rod and the cigarette cartridge conduct the circuit through pin needles, threaded electrodes 90, etc., and the connection between the cigarette rod and the cigarette cartridge can be connected and installed by thread, snap, magnetic, tight fit, etc.

[0069] As a preferred embodiment of the present invention, there is a control circuit board 92 in the cigarette rod, which controls the temperature within a reasonable heating range and can adjust different power levels to match different flavors and proportions of e-liquid. As a preferred embodiment of the present invention, the heating function can be activated by the switch 91, the heating function can also be activated by the microphone, or the heating function can be activated by the combination of the microphone and the switch 91.

[0070] As a preferred embodiment of the present invention, refer to Fig.11The suction nozzle 50 is detachably connected to the shell of the atomizer, and the connection methods include but are not limited to magnetic connection, threaded connection, snap connection, etc., which can be disassembled by the user. The porous body 10 described in any of the aforementioned embodiments is pre-installed on the suction nozzle 50. The suction nozzle 50 and the porous body 10 are relatively limited after pre-assembly. When the suction nozzle 50 is installed in the aerosol generating device, the porous body 10 moves with it. The suction nozzle 50 and the porous body 10 are regarded as one component. After the suction nozzle 50 is installed in place, the porous body 10 can also enter the assembled state. The suction nozzle 50 is pre-installed together with the porous body 10. The user takes the porous body 10 out of the atomizer through the suction nozzle 50 without dirtying his hands, which is convenient for the user to replace. It also allows the user to regularly replace the suction nozzle 50 together with the porous body 10 to keep it clean.

[0071] There is no restriction on the pre-installation method of the porous body 10 and the suction nozzle 50, and an assembly transition piece, such as a collar, an end cap, an extension cap and other structures, can be used to cooperate with the porous body 10 for installation. In order to keep it clean when taking or changing. As a preferred embodiment of the present invention, the porous body 10 is snap-fitted with the suction nozzle 50. As a preferred embodiment of the present invention, refer to Fig.11 The nozzle 50 is provided with an extension portion 52, the extension portion 52 having a slot, and the porous body 10 is engaged with the slot. As a preferred embodiment of the present invention, the extension portion 52 is arranged along the first direction ( Fig.11 The X direction is shown in the figure.

[0072] As a preferred embodiment of the present invention, the porous body 10 and the suction nozzle 50 are clamped by a flexible clamping pad 53. As a preferred embodiment of the present invention, the flexible clamping pad 53 is sleeved on one end of the porous body 10 in the first direction. The flexible clamping pad 53 is made of elastic material. As a preferred embodiment of the present invention, the material of the flexible clamping pad 53 includes silica gel or foam.

[0073] refer to Fig.12 and Fig.13 The present invention also provides a porous body liquid replenishing device 100, which is used to replenish the cigarette liquid to the porous body 10 described in any of the above embodiments. The liquid replenishing device includes: a shell 101, which has an inner cavity; a cover 102, which is connected to the shell 101 and is used to close the inner cavity; a partition 103, which is arranged in the inner cavity and divides the inner cavity into a liquid storage cavity 104 and a receiving cavity 105, wherein the liquid storage cavity 104 stores the cigarette liquid, and the receiving cavity 105 is used to receive the porous body 10, and the porous body 10 can absorb the cigarette liquid in the liquid storage cavity 104 after being received in the receiving cavity 105. As a preferred embodiment of the present invention, the partition 103 can be made of metal, ceramic, plastic, glass and other materials.

[0074] After the smoke liquid stored in the porous body 10 of the aerosol generating device is used up, the porous body 10 can be taken out; Fig.13 , open the cover 102 of the liquid replenishing device, place the porous body 10 in the receiving chamber 105, and the porous body 10 absorbs the cigarette liquid in the liquid storage chamber 104 to achieve liquid replenishment. Fig.15 and Fig.16 , then open the cover 102 and take out the porous body 10 from the accommodating chamber 105. That is, the porous body 10 can be used repeatedly, which is convenient for the user to take the porous body 10 filled with smoke liquid at any time, making full use of the service life of the porous body 10, reducing the waste of disposable products and reducing the cost of use. The liquid filling method in the liquid storage chamber 104 can be pre-filled or filled by the user. It can be a disposable oil chamber or a refillable form that allows multiple additions.

[0075] As a preferred embodiment of the present invention, the porous body 10 is arranged along the first direction ( Fig.12 The liquid storage cavity 104 and the accommodating cavity 105 are arranged at intervals along the first direction.

[0076] As a preferred embodiment of the present invention, the cover body 102 is movably connected to the shell 101. Closing forms such as flip cover, buckle cover, and sliding cover can be used to realize the openable and closable functions of the cover body 102. When the cover body 102 is open, the porous body 10 can be movable and taken out; when the cover body 102 is closed, the porous body 10 can be limited to ensure that it contacts the liquid-conducting layer 106 and is in a state where it can absorb liquid, and the inner cavity of the shell 101 is sealed. The closed and locked cover body 102 can use magnetic attraction, hooks, friction fit, elastic bodies such as springs or torsion springs, limiting shaft bearings, etc. to provide the locking force required for closing. The shell 101 can be made of plastic, metal, ceramic, wood, polymer materials, such as ABS, PP, PC, PPSU and other materials.

[0077] As a preferred embodiment of the present invention, refer to Fig.13, the partition 103 is provided with a channel 103a, and the smoke liquid in the liquid storage chamber 104 can flow out through the channel 103a. As a preferred embodiment of the present invention, there are multiple channels 103a, and the diameter range of the circular hole equivalent to the cross-sectional area of ​​each channel 103a is 0.5mm to 5mm, including 0.5mm and 5mm. That is, the cross-sectional shape of the channel 103a is not limited to a circular hole, and the cross-sectional area of ​​any cross-sectional shape of the channel is equivalent to the cross-sectional area of ​​the corresponding circular hole. As a preferred embodiment of the present invention, the cross-sectional area of ​​the channel 103a is less than or equal to the area of ​​the smoke liquid replenishing surface of the porous body 10, which is conducive to the smoke liquid in the liquid storage chamber 104 being adsorbed by the porous body 10, preventing excess smoke liquid from leaking into the containing chamber 105 of the liquid replenishing device, and keeping the liquid replenishing device clean. Among them, the porous body 10 is in contact with the partition 103, and the smoke liquid replenishing surface is the surface of the porous body 10 in contact with the partition 103.

[0078] As a preferred embodiment of the present invention, refer to Fig.13 , further comprising a liquid conducting layer 106, which is arranged on the partition 103, and is used to contact the porous body 10 and the partition 103 respectively, and can absorb the smoke liquid in the liquid storage chamber 104. Among them, the porous body 10 is in contact with the liquid conducting layer 106, and the smoke liquid replenishing surface is the surface of the porous body 10 in contact with the liquid conducting layer 106. The porous body 10 contacts the liquid conducting layer 106, and can absorb and replenish the smoke liquid through the liquid conducting layer 106. As a preferred embodiment of the present invention, the liquid conducting layer 106 is made of a material that allows liquid to penetrate through. The liquid conducting layer 106 can be cotton, porous ceramics, low-foaming resin, etc. with pores, or a fibrous structure.

[0079] As a preferred embodiment of the present invention, refer to Fig.13 When the cover 102 closes the inner cavity, one end of the porous body 10 abuts against the cover 102, and the other end abuts against the smoke-liquid contact surface. When the liquid-conducting layer 106 is not provided, the porous body 10 contacts the partition 103, and the smoke-liquid contact surface is the surface where the partition 103 contacts the porous body 10. When the liquid-conducting layer 106 is provided, the porous body 10 contacts the liquid-conducting layer 106, and the smoke-liquid contact surface is the surface where the liquid-conducting layer 106 contacts the porous body 10. After the cover 102 is opened, the porous body 10 can be taken out and put in. When the cover 102 is closed, the porous body 10 cannot move freely.

[0080] As a preferred embodiment of the present invention, refer to Fig.13 and Fig.15The cover body 102 is provided with an elastic pressure pad 107, which is used to press the porous body 10 when the cover body 102 closes the inner cavity. One end of the porous body 10 abuts against the elastic pressure pad 107, and the other end abuts against the smoke-liquid contact surface. After the elastic pressure pad 107 is provided, it can ensure that the porous body 10 fully contacts the smoke-liquid contact surface, and can also play a limiting role while achieving sufficient liquid replenishment. The number of elastic pressure pads 107 is not limited. In this embodiment, the number of elastic pressure pads 107 is consistent with the number of porous bodies 10, and they correspond one to one. Fig.15 Two porous bodies 10 and elastic pressure pads 107 corresponding to the two porous bodies 10 are shown.

[0081] The present invention also provides an aerosol generating device assembly, comprising: a porous body 10 of any of the aforementioned embodiments, storing smoke liquid; a heating element 20 of any of the aforementioned embodiments, wherein the porous body 10 is capable of transporting the stored smoke liquid to the heating element 20, and the heating element 20 is used to atomize the smoke liquid transported by the porous body 10 after being powered on; and a liquid replenishing device as described in any of the aforementioned embodiments, used to replenish the smoke liquid to the porous body 10.

[0082] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: include: The housing has an inner cavity, and an aerosol passage is formed in the inner cavity; A porous body storing smoke liquid, the porous body being installed in the inner cavity, and the porous body being used as a liquid storage for storing smoke liquid having no fixed form; A heating element, the heating element is arranged around the porous body, or the heating element is inserted into the porous body, the porous body can transport the stored smoke liquid to the heating element, and the heating element is used to atomize the smoke liquid transported by the porous body after being powered on; A mouthpiece, having a product inhalation port connected to the aerosol passage, the mouthpiece being detachably connected to the housing, and the aerosol generated by the atomization of the smoke liquid can flow into the aerosol passage and then flow out from the product inhalation port; The porous body is pre-installed on the suction nozzle. After the suction nozzle and the porous body are assembled, they are relatively limited. When the suction nozzle is installed in the aerosol generating device, the porous body moves with it. The suction nozzle and the porous body are regarded as a whole as a component.

2. The aerosol generating device according to claim 1, characterized in that The porous body has an opening extending along a first direction, and the heating element extends along the first direction and is inserted into the opening along the first direction.

3. The aerosol generating device according to claim 2, characterized in that The opening is a through hole that penetrates the porous body along the first direction.

4. The aerosol generating device according to claim 1, characterized in that The heating body comprises: a heating bulkhead and a heating component. The heating bulkhead surrounds the porous body and is in at least partial or complete contact with the porous body. The heating component is connected to the heating bulkhead.

5. The aerosol generating device according to claim 4, characterized in that The heating component is welded, embedded or printed on the heating cabin wall.

6. The aerosol generating device according to claim 4, characterized in that The heating component includes one of the following: a metal heating tube, an electromagnetic heating coil, a resistance wire, a flexible heating film, a printed circuit layer, a heating net, a ceramic heating sleeve, or a felt of metal wire.

7. The aerosol generating device according to claim 4, characterized in that The heating bulkhead is a ceramic body, a combination of ceramic and metal, or a combination of ceramic and plastic.

8. The aerosol generating device according to claim 1, characterized in that A heat insulating member is arranged in the shell.

9. The aerosol generating device according to claim 8, characterized in that The thermal insulation member is disposed around the porous body.

10. The aerosol generating device according to claim 1, characterized in that More than 70% of the pores in the porous body have a pore size of 10 μm to 495 μm.

11. The aerosol generating device according to claim 1, characterized in that After the porous body transports part of the smoke liquid to the heating element, the remaining smoke liquid in the porous body can be redistributed evenly in the porous body under the action of capillary force.

12. The aerosol generating device according to claim 1, characterized in that The porous body is columnar and extends along a first direction.

13. The aerosol generating device according to claim 1, characterized in that The material of the porous body includes aluminum oxide, hydroxyapatite and metal powder.

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