Electronic atomization device and atomization assembly for electronic atomization device

Abstract

The invention provides an electronic atomization device and an atomization assembly for the electronic atomization device. The electronic atomization device comprises a liquid storage cavity used for storing a liquid matrix; the porous body is internally provided with a plurality of bubbles and comprises a first side in fluid communication with the liquid storage cavity and a second side deviating from the first side, and the porous body is provided with a plurality of liquid guide channels penetrating from the first side to the second side and used for transferring the liquid matrix from the first side to the second side; a plurality or a plurality of bubbles in the porous body are communicated with at least one liquid guide channel so as to be used for adsorbing and caching a liquid matrix from the liquid storage cavity; and a heating element coupled to the second side of the porous body for heating the liquid substrate to generate an aerosol. According to the electronic atomization device, the internal liquid storage capacity in the porous body is improved through the bubbles, meanwhile, the speed of the liquid matrix delivered to the second side through the liquid guide channel can be adjusted to be kept balanced, and the situation that the liquid matrix provided to the local part of the heating element is insufficient is avoided.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic atomization, and in particular to an electronic atomization device and an atomization component for the electronic atomization device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] An example of such a product is a heating device that releases compounds by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are aerosol providing products, such as so-called electronic atomization devices. These electronic atomization devices typically contain a liquid, and heat the liquid by a heating element to produce an inhalable aerosol; the heating element is arranged and combined on a liquid-conducting member, and the liquid is transferred to the heating element for heating and atomization by a straight through hole with a predetermined direction arranged in the liquid-conducting member; the liquid-conducting member is formed by a dense glass or ceramic body with a straight through hole, and there is basically no ability to cache or store liquid inside itself except for the straight through hole to conduct liquid, resulting in insufficient liquid delivered to the heating element during heating, causing dry burning. Summary of the invention

[0004] An embodiment of the present application provides an electronic atomization device, comprising:

[0005] A liquid storage chamber, used for storing a liquid matrix;

[0006] A porous body having a plurality of bubbles inside, comprising a first side in fluid communication with the liquid storage chamber and a second side away from the first side, wherein the porous body has a plurality of liquid conducting channels extending from the first side to the second side, so as to transfer a liquid matrix from the first side to the second side; the plurality of bubbles in the porous body are in communication with at least one of the liquid conducting channels, so as to adsorb and buffer the liquid matrix from the liquid storage chamber;

[0007] A heating element is coupled to the second side of the porous body and is used to heat the liquid substrate to generate an aerosol.

[0008] In some embodiments, the number of the bubbles in the porous body is greater than the number of the liquid conducting channels.

[0009] In some embodiments, a diameter of the liquid-conducting channel is larger than a diameter of the bubble.

[0010] In some embodiments, the diameter of the bubbles is between 1 and 20 μm;

[0011] And / or, the diameter of the liquid-conducting channel is between 10 and 60 μm.

[0012] In some embodiments, the bubble extends non-straightly; and / or, the bubble extends smoothly curved.

[0013] In some embodiments, the bubbles are randomly distributed within the porous body.

[0014] In some embodiments, the density of the bubbles in the porous body is about 5000 to 8000 bubbles / cm 3 .

[0015] In some embodiments, the porous body is further provided with:

[0016] A plurality of capillary grooves are arranged on the surface of the first side and / or the second side.

[0017] In some embodiments, it also includes:

[0018] A transition layer is located between the porous body and the heating element, and is used to prevent the heating element from falling off from the surface of the second side of the porous body due to thermal deformation.

[0019] Another embodiment of the present application further provides an electronic atomization device, comprising:

[0020] A liquid storage chamber, used for storing a liquid matrix;

[0021] An opalescent quartz glass body having bubbles therein, comprising a first side in fluid communication with the liquid storage chamber and a second side away from the first side, wherein the opalescent quartz glass body is further provided with a plurality of liquid conducting channels extending from the first side to the second side, so as to transfer the liquid matrix from the first side to the second side; and a spacing between adjacent liquid conducting channels is less than an average length of the bubbles in the opalescent quartz glass body;

[0022] A heating element is coupled to the second side of the porous body and is used to heat the liquid substrate to generate an aerosol.

[0023] Yet another embodiment of the present application further provides an atomization assembly for an electronic atomization device, comprising.

[0024] A porous body, comprising a first side and a second side away from the first side, the porous body having a plurality of liquid conducting channels extending from the first side to the second side, for transferring a liquid matrix from the first side to the second side; a plurality of bubbles are also arranged in the porous body for absorbing and caching the liquid matrix; and one of the liquid conducting channels is connected to at least two of the bubbles at the same time;

[0025] A heating element is coupled to the second side of the porous body.

[0026] In the above electronic atomization device, the porous body can improve the liquid storage capacity through a number of bubbles inside it. At the same time, the above bubbles can also adjust the transfer rate of the liquid matrix from the first side of the porous body to the second side through the liquid conducting channel, so that the liquid transfer rate of the porous body during the use of the electronic atomization device remains basically balanced, avoiding insufficient liquid matrix provided to the local part of the heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0028] Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment;

[0029] Figure 2 yes Figure 1 A schematic structural diagram of an embodiment of an atomizer;

[0030] Figure 3 yes Figure 2 A cross-sectional schematic diagram of atomization components from one perspective;

[0031] Figure 4 yes Figure 3 Schematic diagram of the decomposition of the atomization assembly;

[0032] Figure 5 yes Figure 4 A schematic diagram of a preparation process of an embodiment of a mesoporous body;

[0033] Figure 6 is a cross-sectional schematic diagram of an atomization assembly of yet another embodiment from one viewing angle;

[0034] Figure 7 is a schematic diagram of a heating element according to yet another embodiment;

[0035] Figure 8 is a schematic diagram of a heating element according to yet another embodiment;

[0036] Fig. 9 is a schematic diagram of a heating element according to yet another embodiment. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] One embodiment of the present application provides an electronic atomization device, which can be found in Figure 1As shown, the invention comprises a nebulizer 100 storing a liquid matrix and atomizing the liquid matrix to generate an aerosol, and a power supply mechanism 200 for supplying power to the nebulizer 100. Figure 1 In the illustrated embodiment, the atomizer 100 and the power supply mechanism 200 of the electronic atomization device can be separated or disassembled relative to each other; the electronic atomization device having such atomizer 100 and the power supply mechanism 200 can be separated or disassembled relative to each other, such as the so-called "replaceable cartridge" electronic atomization device. Or in some other variant embodiments, the atomizer 100 and the power supply mechanism 200 of the electronic atomization device are tightly wrapped and fixed by the shell component of the electronic atomization device, so that the atomizer 100 and the power supply mechanism 200 cannot be detachable relative to each other from the inside of the shell component; the electronic atomization device having such atomizer 100 and the power supply mechanism 200 cannot be detachable relative to each other, such as the so-called "integrated or disposable" electronic atomization device.

[0039] In an alternative embodiment, for example Figure 1 As shown, the power supply mechanism 200 includes a receiving cavity 270 arranged at one end along the length direction for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 230 at least partially exposed on the surface of the receiving cavity 270, for supplying power to the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated in the power supply mechanism 200.

[0040] according to Figure 1 In the exemplary embodiment shown, an electric contact 21 is provided on the end of the atomizer 100 opposite to the power supply mechanism 200 along the length direction, so that when at least a portion of the atomizer 100 is received in the receiving cavity 270, the electric contact 21 contacts and abuts against the electric contact 230 to form conductivity.

[0041] A sealing member 260 is disposed in the power supply mechanism 200, and the sealing member 260 separates at least a portion of the internal space of the power supply mechanism 200 to form the above receiving cavity 270. Figure 1 In the exemplary embodiment shown, the seal 260 is configured to extend along the cross-sectional direction of the power mechanism 200, and is preferably made of a flexible material, thereby preventing the liquid matrix that seeps from the atomizer 100 into the receiving chamber 270 from flowing to the controller 220, sensor 250 and other components inside the power mechanism 200.

[0042] exist Figure 1 In the exemplary embodiment shown, the power supply mechanism 200 also includes a battery cell 210 for supplying power at the other end away from the receiving cavity 270 along the length direction; and a controller 220 arranged between the battery cell 210 and the receiving cavity, which can be operated to guide current between the battery cell 210 and the electrical contact 230.

[0043] During use, the power supply mechanism 200 includes a sensor 250 for sensing changes in the suction airflow generated when the atomizer 100 is inhaled, and then the controller 220 controls the battery cell 210 to output current to the atomizer 100 according to the detection signal of the sensor 250 .

[0044] exist Figure 1 In the exemplary embodiment shown, the power supply mechanism 200 is provided with a charging interface 240 at the other end away from the receiving cavity 270 for charging the battery cell 210 .

[0045] Figure 2 Shows Figure 1 The schematic diagram of the structure of an embodiment of the atomizer 100 is shown in FIG. 1 , wherein the atomizer 100 comprises: a main housing 10 and necessary functional components arranged inside the main housing 10 for storing and atomizing a liquid matrix; Figure 2 As shown, the main housing 10 is generally in the shape of a longitudinal cylinder, and has a proximal end 110 and a distal end 120 that are opposite to each other along the length direction. The proximal end 110 is configured as an end for the user to inhale aerosol, and an air outlet 111 for the user to inhale is provided at the proximal end 110; and the distal end 120 is used as an end that is combined with the power supply mechanism 200.

[0046] See also Figure 2 As shown, the main housing 10 is provided with a liquid storage chamber 12 for storing liquid matrix, and an atomizing assembly for sucking liquid matrix from the liquid storage chamber 12 and heating and atomizing the liquid matrix. Figure 2 In the schematic diagram shown, an aerosol transmission tube 11 is axially arranged in the main shell 10, and the space between the aerosol transmission tube 11 and the inner wall of the main shell 10 forms a liquid storage chamber 12 for storing a liquid matrix; the aerosol transmission tube 11 extends to or ends at the air outlet 111, so as to transmit the generated aerosol to the air outlet 111 for inhalation.

[0047] In some optional embodiments, the aerosol transmission tube 11 and the main shell 10 are integrally molded using a moldable material, thereby defining a liquid storage chamber 12 between the aerosol transmission tube 11 and the main shell 10, and the liquid storage chamber 12 has an opening open toward the distal end 120.

[0048] See also Figures 2 to 5 As shown, the nebulizer 100 also includes an atomizing assembly, which is used to absorb and atomize the liquid matrix from the liquid storage chamber 12 to generate an aerosol; specifically, the atomizing assembly includes:

[0049] The rigid porous body 30 is generally configured in a plate-like or sheet-like shape; and the porous body 30 has a first side 310 and a second side 320 that are separated from each other; the first side 310 is arranged toward the liquid storage chamber 12 and is in fluid communication with the liquid storage chamber 12;

[0050] The heating element 40, coupled to the second side 320, is used to heat at least a portion of the liquid matrix held on the porous body 30 to generate an aerosol.

[0051] See also Figure 2 In the illustrated embodiment, the atomizer 100 further comprises:

[0052] The rigid support 20 is made of a rigid material such as organic polymer plastic or ceramic. The support 20 is used to accommodate and support the atomization component, especially to accommodate the porous body 30.

[0053] The flexible sealing element 50 is made of a flexible material such as silicone or thermoplastic elastomer; the sealing element 50 is at least partially located in the bracket 20 and partially surrounds the porous body 30; the sealing element 50 is used to provide sealing between the bracket 20 and the porous body 30.

[0054] See also Figures 2 to 5 As shown, the porous body 30 is configured to be arranged along the longitudinal extension of the atomizer 100; and the porous body 30 is generally configured to be in a sheet shape. And the porous body 30 has a first side 310 and a second side 320 opposite to each other in the thickness direction. The first side 310 is arranged toward the liquid storage chamber 12 and is in fluid communication with the liquid storage chamber 12, for example, Figure 2 As shown by the middle arrow R1 , the first side 310 is in fluid communication with the liquid storage chamber 12 through the liquid channel 13 defined in the bracket 20 to receive the liquid matrix; the surface of the second side 320 is configured as an atomization surface, and the heating element 40 is combined on the surface of the second side 320 .

[0055] according to Figure 2 As shown, the porous body 30 is basically arranged perpendicular to the longitudinal direction of the main shell 10; and an atomization chamber 340 is defined between the second side 320 of the porous body 30 and the distal end 120 of the main shell 10, and the atomization chamber 340 is located on the side of the porous body 30 away from the liquid storage chamber 12; the atomization chamber 340 is used to contain the released aerosol. At least a portion of the heating element 40 is exposed in the atomization chamber 340. When inhaling, external air enters the atomization chamber 340 from the air inlet 22 of the distal end 120, and carries the aerosol in the atomization chamber 340 to the aerosol transmission tube 11, and then is inhaled by the user at the air outlet 111, as shown in FIG. Figure 2 As shown by the arrow R2.

[0056] In some embodiments, the porous body 30 is a straight sheet or plate; and the first side 310 and the second side 320 are flat extended planes. Or in some other variations, the porous body 30 is a curved sheet; and the first side 310 and the second side 320 are curved surfaces.

[0057] exist Figures 2 to 5 In the embodiment, the porous body 30 is in a square shape; or in some other variations, the porous body 30 may be substantially circular, elliptical, polygonal, or other shapes with side notches, etc. The material of the porous body 30 may include at least one of glass, ceramic, carbon, metal, and high temperature resistant polymer plastic.

[0058] exist Figures 2 to 5 In the illustrated embodiment, the heating element 40 is a sheet-shaped heating element that is mounted on the second side 320 after being cut or etched from a sheet-shaped substrate. Alternatively, in other variant embodiments, the heating element 40 includes a conductive track formed on the second side 320 by printing, deposition, etc.; specifically, the heating element 40 includes a printed conductive track that extends in a circuitous or meandering manner.

[0059] In some embodiments, the heating element 40 is made of a resistive metal material, a metal alloy material, graphite, a conductive ceramic, etc. having appropriate impedance; suitable metal or alloy materials may, for example, include at least one of nickel, cobalt, zirconium, titanium, aluminum, chromium, tungsten, iron, niobium, tantalum, molybdenum, silver, gold, platinum, palladium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-manganese-aluminum-based alloy or stainless steel.

[0060] according to Figures 2 to 4 In the embodiment shown, the heating element 40 is arranged as a substantially planar heating element; and the heating element 40 includes a first electrode portion 41 and a second electrode portion 42 opposite to each other in the length direction, and a heating portion 43 extending between the first electrode portion 41 and the second electrode portion 42. The heating portion 43 is used to heat the liquid matrix to generate an aerosol; the first electrode portion 41 and the second electrode portion 42 are used to conduct current on the heating portion 43. After assembly, the electrical contact 21 passes through the distal end 120 into the atomizer 100 and abuts against the first electrode portion 41 and the second electrode portion 42, so as to be used to power the heating element 40.

[0061] according to Figures 2 to 4 As shown, the heating portion 43 of the heating element 40 is fluid permeable; as used herein, "fluid permeable" means that an aerosol in a gas phase can easily pass through the heating portion 43. For example, in Figure 3 As shown in the figure, the heating portion 43 is a tortuous shape so as to define hollows or holes, so that the fluid can penetrate. Or in some other embodiments, the heating portion 43 can be a mesh shape with mesh holes, so as to form a fluid permeable. Or in some other embodiments, the heating portion 43 can be a printed, for example, S-shaped, Ω-shaped resistance heating track, and the preferred width of the heating track is not more than 2 mm.

[0062] In some embodiments, the heating portion 43 that is heated by resistive Joule heat may have a power of about 1.5 to 4 W / mm during heating. 2 Power density, that is, the unit is mm 2 The heating part 43 matches an average heating power of 1.5 to 4 W.

[0063] exist Figures 2 to 4 In the embodiment, the heating element 40 and / or the heating portion 43 partially covers the end of the liquid-conducting channel 31 on the second side 320, and partially exposes or avoids the end of the liquid-conducting channel 31 on the second side 320. Figures 2 to 4 In the embodiment, the first electrode portion 41 and the second electrode portion 42 are dense.

[0064] In some optional embodiments, the heating element 40 is formed on the second side 320 of the porous body 30 by printing, depositing, spraying or printing a conductive paste, and is thus tightly bonded to the porous body 30. Alternatively, in some other embodiments, the independently prefabricated heating element 40 is bonded to the second side 320 of the porous body 30 by adding a bonding paste such as glass paste or metal paste and then curing, so that the heating element 40 is stably bonded to the second side 320 of the porous body 30.

[0065] according to Figures 2 to 4 As shown, the porous body 30 comprises:

[0066] A plurality of liquid guiding channels 31 penetrate from the first side 310 to the second side 320 , and the liquid matrix is ​​transferred from the first side 310 to the heating element 40 located on the second side 320 through the liquid guiding channels 31 for heating and atomization.

[0067] In some embodiments, the plurality of liquid-conducting channels 31 in the porous body 30 extend straight along the thickness direction of the porous body 30; or, the liquid-conducting channels 31 penetrate the porous body 30 along the thickness direction of the porous body 30. And in an embodiment, the plurality of liquid-conducting channels 31 are arranged in an orderly manner in the porous body 30. The extension of the plurality of liquid-conducting channels 31 has a predetermined direction, not disorderly. And in an embodiment, the plurality of liquid-conducting channels 31 are arranged in an array in the porous body 30; and in an embodiment, the plurality of liquid-conducting channels 31 can transfer the liquid matrix from the first side 310 to the second side 320 at a predetermined rate. In some embodiments, the arrangement of the plurality of liquid-conducting channels 31 in the porous body 30 makes the porous body 30 in the form of a honeycomb structure.

[0068] In some embodiments, the diameter of the liquid-conducting channel 31 is between 10 and 60 μm. In some embodiments, the length of the liquid-conducting channels 31 , that is, the thickness of the porous body 30 , is between 0.4 and 2 mm.

[0069] according to Figure 3As shown, the porous body 30 is also provided with:

[0070] Several or more bubbles 32 are connected to at least one liquid-conducting channel 31; the bubbles 32 are used to buffer the liquid matrix flowing through the liquid-conducting channel 31. Figure 3 In the illustrated embodiment, at least two bubbles 32 are connected to the same liquid-conducting channel 31 at the same time; and the same bubble 32 can also be connected to at least two liquid-conducting channels 31 at the same time.

[0071] In an embodiment, the bubbles 32 in the porous body 30 are discretely distributed; or, the bubbles 32 in the porous body 30 are randomly distributed. Two adjacent liquid-conducting channels 31 are connected to some of the bubbles 32, thereby forming a connection between the two liquid-conducting channels 31, and the bubbles 32 between them define a liquid cache space for caching the liquid matrix. The cache space defined on both sides of the liquid-conducting channel 31 is asymmetrically and disorderly distributed. In actual situations, some of the bubbles 32 are connected to two liquid-conducting channels 31 at the same time, so that the liquid matrix can be exchanged and circulated between the two liquid-conducting channels 31, and the other part of the bubbles 32 is only connected to one liquid-conducting channel 31, which also serves to increase the liquid storage capacity in the porous body 30.

[0072] In the embodiment, the liquid matrix is ​​buffered by the bubbles 32, which can improve the porosity or liquid storage capacity of the porous body 30 itself, and at the same time, can adjust the transfer rate of the liquid matrix from the first side 310 of the porous body 30 to the second side 320 through the liquid conducting channel 31, that is, it is beneficial to maintain a stable liquid supply efficiency to the second side 320.

[0073] exist Figure 3 As shown in FIG. , a plurality of bubbles 32 may be arranged substantially perpendicular to the liquid guiding channel 31. Figure 3 As shown, the bubble 32 does not extend straight; for example, Figure 3 The bubbles 32 are curved, such as smoothly curved in an arc or a wave. Also, the diameter of the bubbles 32 is smaller than the diameter of the liquid-conducting channel 31; for example, in some specific embodiments, the diameter of the bubbles 32 is between 1 and 20 μm. Also, the number of bubbles 32 in the porous body 30 is greater than the number of the liquid-conducting channels 31. For example, in some examples, the number of bubbles 32 in the porous body 30 is more than three times the number of the liquid-conducting channels 31.

[0074] according to Figure 3 As shown, the bubbles 32 are formed inside the porous body 30; and, the bubbles 32 do not penetrate to the surface of the first side 310 and / or the second side 320 of the porous body 30; or, the bubbles 32 avoid the surface of the first side 310 and / or the second side 320 of the porous body 30.

[0075] In some embodiments, the porous body 30 having both the liquid-conducting channel 31 and the gas bubble 32 is prepared by punching or etching a porous substrate having micropores or microchannels inside. Figure 5 The preparation process of the porous body 30 of the liquid-conducting channel 31 and the gas bubble 32 in one embodiment is shown, including:

[0076] S10, obtaining a porous matrix 3000, wherein the porous matrix 3000 has a plurality of bubbles 3300 arranged in a disordered or dispersed manner;

[0077] S20, such as Figure 5 As shown by the middle arrow P1, the porous matrix 3000 is punched by machining using a punching device 400 with a drill bit or a laser head 410. During the punching process, the holes are punched so that the distance between adjacent holes is smaller than the average pore size of the bubbles 3300. Thus, a plurality of liquid conducting channels 31 with a predetermined direction can be formed by the punching; and the formed liquid conducting channels 31 can basically pass through or connect more than two bubbles 3300 at the same time, and the bubbles 3300 define the bubbles 32 in the porous body 30.

[0078] Then, by punching holes in the porous substrate 3000 in a predetermined direction, a porous body 30 having a liquid-conducting channel 31 and bubbles 32 can be prepared. Alternatively, in some other embodiments, the liquid-conducting channel 31 can be formed by punching holes in the porous substrate 3000 by chemical etching or the like.

[0079] In some embodiments, the porous substrate 3000 is a porous ceramic or porous glass having bubbles 3300 inside. In a specific embodiment, the porous substrate 3000 is an opalescent quartz glass body; opalescent quartz glass is a quartz glass product that is usually used in the manufacture of far-infrared heaters and is milky white in color due to the presence of finely dispersed bubbles 32 inside; the industrially prepared opalescent quartz glass that can be purchased usually contains a large number of small bubbles 32 (about 5000 to 8000 / cm 3 ). In the preparation of the porous body 30 of the present application, the opaline silica body is used as the porous substrate 3000, and then a liquid conducting channel 31 penetrating along the thickness direction is formed by punching, and during the punching process, the liquid conducting channel 31 can simultaneously pass through or connect at least two internal bubbles 32 of the opaline silica body; and the density of a large number of small bubbles 32 in the opaline silica body is about 5000 to 8000 / cm 3 .

[0080] In some preferred embodiments, an opalescent quartz glass body with internal bubbles 32 in a rod-like, ellipsoidal or elongated shape is used; liquid guide channels 31 are formed by punching holes above the porous matrix 3000 of the opalescent quartz glass body, and the spacing between adjacent liquid guide channels 31 is less than the average length of the bubbles in the opalescent quartz glass body.

[0081] Or according to Figure 4 In the embodiment shown, a plurality of first capillary grooves 321 are arranged on the surface of the second side 320 of the porous body 30. The first capillary grooves 321 are used to promote the transfer of the liquid matrix to the heating element 40 on the surface of the second side 320. Figure 4 In the embodiment, the first capillary grooves 321 are arranged along the length direction; and Figure 4 In some embodiments, the first capillary groove 321 avoids the end of the liquid-conducting channel 31 on the surface of the second side 320. In some embodiments, the width and / or depth of the first capillary groove 321 is less than 0.2 mm.

[0082] Or in other variation embodiments, the plurality of first capillary grooves 321 pass through or penetrate the ports on the surface of the second side 320 of the porous body 30 ; or in other variation embodiments, the plurality of first capillary grooves 321 are arranged along the width direction.

[0083] Or in other variation embodiments, a plurality of second capillary grooves are also arranged on the surface of the first side 310 of the porous body 30 , which is beneficial for promoting the transfer of the liquid matrix to the liquid guide channel 31 within the surface of the first side 310 .

[0084] or Figure 6 A schematic diagram of an atomization assembly of another embodiment is shown; in this embodiment, the atomization assembly includes:

[0085] The porous body 30a includes a first side 310a and a second side 320a opposite to each other in the thickness direction; a plurality of liquid conducting channels 31a extending from the first side 310a to the second side 320a and a plurality of bubbles 32a connected to the liquid conducting channels 31a are arranged in the porous body 30a; after assembly, the first side 310a is in fluid communication with the liquid storage chamber 12;

[0086] The heating element 40a is combined with the second side 320a of the porous body 30a to atomize the liquid matrix to generate an aerosol; the heating element 40a includes a first electrode portion 41a, a second electrode portion 42a and a heating portion 43a; the heating portion 43a has a plurality of perforations 431a; the perforations 431a increase the resistance of the heating portion 43a to a suitable range, and the perforations 431a enable the heating portion 43a to penetrate the fluid to achieve the purpose of releasing the aerosol. The perforations 431a are arranged in an array on the heating portion 43a, so that the heating portion 43a is honeycomb-shaped or mesh-shaped.

[0087] The transition layer 33a is formed between the surface of the second side 320a of the porous body 30a and the heating element 40a; specifically, the transition layer 33a is formed between the surface of the second side 320a of the porous body 30a and the heating portion 43a of the heating element 40a.

[0088] In an embodiment, the transition layer 33a includes one or more of silicon, titanium, zirconium, iron, nickel, aluminum, tungsten, chromium, niobium, tantalum, molybdenum, vanadium, gallium, samarium, zinc, tin, magnesium, or oxides, nitrides, or carbides thereof. In some embodiments, the transition layer 33a is formed on the surface of the second side 320a by vapor deposition or thermal spraying, and the heating portion 43a is disposed on the transition layer 33a. The transition layer 33a is advantageous for reducing or inhibiting deformation of the heating portion 43a due to hot and cold cycles during use, providing stress compensation, and preventing the heating portion 43a from loosening from the surface of the second side 320a.

[0089] Accordingly, the transition layer 33a also has the same shape as the heating portion 43a, such as hollowing or perforation, so that the transition layer 33a is also fluid-permeable to avoid blocking the delivery of the liquid matrix from the surface of the second side 320a to the heating portion 43a. Figure 6 and Figure 7 As shown, in this embodiment, the heating portion 43a is constructed to be a mesh shape having mesh holes 431a; accordingly, the transition layer 33a also has the same shape as the mesh heating portion 43a.

[0090] according to Figure 6 and Figure 7 As shown, the thickness of the first electrode portion 41a and the second electrode portion 42a of the heating element 40a is greater than the thickness of the heating portion 43a; during preparation, the transition layer 33a is arranged to be located between the first electrode portion 41a and the second electrode portion 42a.

[0091] Alternatively, for the atomizing assembly of this embodiment, the transition layer 33a and the heating element 40a are formed by bonding to the surface of the second side 320a of the porous body 30a by deposition, printing or spraying, and then sintering or annealing at high temperature to partially oxidize them.

[0092] For example, in some embodiments, the transition layer 33a is prepared by depositing, spraying, or printing raw materials such as titanium, zirconium, niobium, tantalum, molybdenum, iron, or alloys thereof on the surface of the second side 320a of the porous body 30a, and then treating it at a temperature above 800°C in an air atmosphere or an oxidizing atmosphere, so that it is at least partially oxidized into a metal oxide.

[0093] For example, in some embodiments, the heating element 40a is formed by forming the above resistive metal or alloy raw materials on the surface of the second side 320a of the porous body 30a by vapor deposition, spraying or printing, and then annealing at high temperature or annealing at high temperature under certain conditions such as vacuum, air, oxygen, nitrogen, etc. to partially oxidize or nitride it. And in some embodiments, the thickness of the heating element 40a prepared by vapor deposition and high temperature annealing is about 0.4-3 μm.

[0094] Figure 8 A schematic diagram of a heating element 40b in another variant embodiment is shown. In this embodiment, the heating element 40b includes:

[0095] The first electrode portion 41b and the second electrode portion 42b are opposite to each other in the length direction, and the first resistance heating track 431b and the second resistance heating track 432b extend in a circuitous manner between the first electrode portion 41b and the second electrode portion 42b; the first resistance heating track 431b and the second resistance heating track 432b are bent and meandering; the shapes of the first resistance heating track 431b and the second resistance heating track 432b include multiple or several periodically presented track units, for example, include several track units approximately in a V shape or a W shape. The first resistance heating track 431b and the second resistance heating track 432b define the heating portion located between the first electrode portion 41b and the second electrode portion 42b.

[0096] Fig. 9 A schematic diagram of a heating element 40c in another variant embodiment is shown. In this embodiment, the heating element 40c includes:

[0097] A first electrode portion 41c and a second electrode portion 42c facing each other in the length direction, and a heating portion 43c between the first electrode portion 41c and the second electrode portion 42c. The first electrode portion 41c and the second electrode portion 42c are sheets of dense metal or alloy; the heating portion 43c is a fluid-permeable heating mesh. The heating portion 43c is a heating mesh woven from metal conductive wires; for example, the heating portion 43c is woven from transverse metal conductive wires arranged along the length direction of the heating element 40c and longitudinal metal conductive wires arranged along the width direction of the heating element 40c. In the woven heating portion 43c, the gaps between the metal conductive wires form capillary pores inside the heating portion 43c to release or pass aerosols.

[0098] In some embodiments, the heating portion 43c is in the shape of a felt or mesh woven from metal conductive wires. Also, in some embodiments, the resistivity of the material of the metal conductive wires woven to form the heating portion 43c is between 0.5 and 2 Ω mm. 2 / m. And, in some implementations, suitable metal conductive wires include: at least one of stainless steel conductive wires, iron-chromium-aluminum conductive wires, nickel-iron alloy wires, Hastelloy wires, Inconel alloy wires, nickel-chromium alloy wires, and monel alloy wires. And, in some implementations, the diameter of the metal conductive wires may range from about 0.01 mm to 0.1 mm.

[0099] according to Fig. 9 As shown in the figure, the heating portion 43c is provided with notches 432c on both sides in the width direction, so that the width dimension of the heating portion 43c in the longitudinal direction is variable; and the notches 432c are used to change the temperature field distribution on the heating portion 43c during the heating process. The edges on both sides of the heating portion 43c in the width direction are curved. Fig. 9 As shown in FIG. 4 , both sides of the heating portion 43 c in the width direction have protruding teeth 431 c defined between two adjacent notches 432 c , which is beneficial for improving the uniformity of temperature distribution on the heating portion 43 c .

[0100] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; A porous body having a plurality of bubbles inside, comprising a first side in fluid communication with the liquid storage chamber and a second side away from the first side, wherein the porous body has a plurality of liquid conducting channels extending from the first side to the second side, so as to transfer a liquid matrix from the first side to the second side; the plurality of bubbles in the porous body are in communication with at least one of the liquid conducting channels, so as to adsorb and buffer the liquid matrix from the liquid storage chamber; A heating element is coupled to the second side of the porous body and is used to heat the liquid substrate to generate an aerosol.

2. The electronic atomization device according to claim 1, characterized in that: The number of the bubbles in the porous body is greater than the number of the liquid-conducting channels.

3. The electronic atomization device according to claim 1 or 2, characterized in that: The diameter of the liquid guiding channel is greater than the diameter of the bubble.

4. The electronic atomization device according to claim 3, characterized in that: The diameter of the bubbles is between 1 and 20 μm; And / or, the diameter of the liquid-conducting channel is between 10 and 60 μm.

5. The electronic atomization device according to claim 1 or 2, characterized in that: The bubbles extend non-straightly; and / or, the bubbles extend smoothly in a curved manner; and / or, the bubbles are randomly distributed in the porous body.

6. The electronic atomization device according to claim 1 or 2, characterized in that: The density of the bubbles in the porous body is about 5000 to 8000 / cm 3 .

7. The electronic atomization device according to claim 1 or 2, characterized in that: The porous body is also provided with: A plurality of capillary grooves are arranged on the surface of the first side and / or the second side.

8. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A transition layer is located between the porous body and the heating element, and is used to prevent the heating element from falling off from the surface of the second side of the porous body due to thermal deformation.

9. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; An opalescent quartz glass body having a plurality of bubbles therein, comprising a first side in fluid communication with the liquid storage chamber and a second side away from the first side, wherein the opalescent quartz glass body is further provided with a plurality of liquid conducting channels extending from the first side to the second side, so as to transfer the liquid matrix from the first side to the second side; and a distance between two adjacent liquid conducting channels is smaller than an average pore diameter or an average length of the bubbles in the opalescent quartz glass body, so that some bubbles in the opalescent quartz glass body are connected to two adjacent liquid conducting channels; A heating element is coupled to the second side of the porous body and is used to heat the liquid substrate to generate an aerosol.

10. An atomization assembly for an electronic atomization device, characterized in that: include. An opalescent quartz glass body having a plurality of bubbles inside, comprising a first side and a second side opposite to each other; the opalescent quartz glass body is further provided with a plurality of liquid conducting channels penetrating from the first side to the second side, so as to transfer a liquid matrix from the first side to the second side; and a distance between two adjacent liquid conducting channels is smaller than an average pore diameter or an average length of the bubbles in the opalescent quartz glass body, so that some bubbles in the opalescent quartz glass body are connected to two adjacent liquid conducting channels; A heating element is coupled to the second side of the porous body.

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