Electronic aerosol generation device and atomizer thereof

Abstract

To provide an electronic aerosol generation device and an atomizer thereof.SOLUTION: An atomizer includes a casing, a fixed unit, and an atomization module. The atomization module includes a liquid guiding body 31 and a heating element 32. The liquid guiding body 31 is provided with an air guiding hole penetrating in a vertical direction. The liquid guiding body 31 is further provided with a liquid guiding groove. The liquid guiding groove can include a first sub liquid guiding groove and a second sub liquid guiding groove. The first sub liquid guiding groove is communicated with the second sub liquid guiding groove. The first sub liquid guiding groove is communicated with a liquid guiding route. An atomization surface is formed on a wall surface where the air guiding hole faces the second sub liquid guiding groove, and the atomization surface is provided with the heating element. The aerosol generated by the atomization module can pass through the air guiding hole directly, and enter the inside of an air guiding pipe. By this arrangement, a flow route is shortened, and condensation of the aerosol by the decrease in the temperature in the flow process can be effectively avoided, thereby avoiding the situation that the condensed liquid is inhaled by a consumer.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to the technical field of atomization, and in particular to an electronic aerosol generating device and its atomizer. [Background technology]

[0002] Electronic atomizers are devices that use electricity to heat liquid, bringing it to its boiling point and turning it into vapor. They are currently widely used in e-cigarettes and in cosmetic medicine.

[0003] The electronic atomizer includes an atomizer. The atomizer's core is the atomization core. In general, the atomization core includes a liquid conductor and a heating element, which are combined with each other. Among them, porous ceramic-based hard liquid conductor materials are widely used because they are easy to assemble. Usually, the liquid conductor has a block structure, and liquid is generally fed from the side, and a heating element is provided on the bottom (atomization surface) to heat the liquid to be atomized.

[0004] The atomizing liquid gradually permeates the atomizing surface from the liquid-guiding surface, and the heating element on the atomizing surface heats and atomizes the atomizing liquid. The aerosol formed by the heating and atomization is led out of the atomizer through the circumferential side of the liquid-guiding surface and inhaled by the consumer. In this case, the flow path of the aerosol becomes longer, and the temperature drops during the flow process, changing the inhalation feeling, and even some of the aerosol may condense. This not only worsens the consistency of the inhalation feeling during atomization, but inhaling the condensed liquid is also bad for the body.

[0005] Secondly, if the condensed liquid flows inside the atomizer, it may leak out of the atomizer, and in serious cases, it may damage the circuit elements of the electronic atomizer, thereby affecting the service life of the electronic atomizer.

[0006] In addition, currently, the atomization liquid of the atomization core permeates from the liquid-guiding surface to the atomization surface. If the heating element on the atomization surface is unable to heat and atomize the atomization liquid, the atomization liquid may seep out and even drip from the atomization core. If the atomization liquid enters the airflow path, it will be sucked in by the consumer together with the aerosol due to the action of the airflow when the consumer inhales. In addition, if the atomization liquid seeps out of the atomizer, it may also damage the circuit elements of the electronic atomization device.

[0007] Finally, since the vertically arranged liquid guide is supplied from the side, it may be difficult to assemble in a sealed manner, or more assembly parts may be required to assemble in a sealed manner, which may lead to problems such as leakage and high costs. Summary of the Invention [Problem to be solved by the invention]

[0008] The technical problem that the present invention aims to solve is to provide an electronic aerosol generating device and its atomizer. [Means for solving the problem]

[0009] The technical solutions adopted in the present invention to solve the technical problems are as follows:

[0010] That is, the atomizer includes a casing and an atomizing body disposed in the casing. The atomizing body includes a fixing unit and an atomizing module disposed in the fixing unit.

[0011] The casing has a liquid storage chamber and an air guide tube. The air guide tube is arranged to extend in a vertical direction. The atomizing body has an air guide path and a liquid guide path. The air guide path is connected to and communicates with the air guide tube, and the liquid guide path is communicated with the liquid storage chamber.

[0012] The atomization module includes a liquid guiding member and a heating element. The liquid guiding member has an air hole passing through in the vertical direction. The liquid guiding member further has at least one liquid guiding groove. The at least one liquid guiding groove includes at least one first sub-liquid guiding groove and at least one second sub-liquid guiding groove. The first sub-liquid guiding groove communicates with the second sub-liquid guiding groove. The first sub-liquid guiding groove communicates with the liquid guiding path.

[0013] An atomization surface is formed on a wall surface where the air hole and the second sub-liquid guide groove face each other, and the heating element is provided on the atomization surface.

[0014] In some embodiments, the depth of the first liquid guide sub-channel is smaller than the depth of the second liquid guide sub-channel, and the width of the vertical cross section of the first liquid guide sub-channel is equal to the width of the vertical cross section of the second liquid guide sub-channel.

[0015] In some embodiments, the depth of the first liquid guide sub-channel is smaller than the depth of the second liquid guide sub-channel, and the width of the vertical cross section of the first liquid guide sub-channel is larger than the width of the vertical cross section of the second liquid guide sub-channel.

[0016] In some embodiments, the number of the liquid guide grooves is at least 2. The at least two liquid guide grooves are provided at an interval around the outer periphery of the air guide hole.

[0017] In some embodiments, the second sub-channels of the at least two of the liquid guiding channels communicate with each other. Alternatively, the second sub-channels of the at least two of the liquid guiding channels do not communicate with each other.

[0018] In some embodiments, a wall surface where the air hole and the second liquid-guiding sub-groove face each other is a flat surface or an arcuate surface.

[0019] In some embodiments, the heating element includes a heating portion and at least two electrode portions connected to the heating portion, the heating portion is attached or embedded in the atomizing surface, and ends of the at least two electrode portions are attached or embedded in the liquid guiding portion.

[0020] In some embodiments, the bottom of the liquid guiding member further includes a liquid collection groove.

[0021] In some embodiments, the cross section of the collection channel is arcuate.

[0022] In some embodiments, the fixing unit includes a sealing cover and a holder that are mated with each other.

[0023] The sealing cover is cylindrical. The sealing cover includes a ceiling wall and a peripheral wall extending from the ceiling wall. The ceiling wall is provided with an air guide portion and at least one liquid supply hole. The air guide portion is provided extending in the vertical direction so as to be connected to and communicate with the air guide pipe. The liquid supply hole communicates with the liquid storage chamber.

[0024] The holder is cylindrical. The holder includes a ceiling portion and a side portion extending from the ceiling portion. At least one liquid guide hole is provided in the ceiling portion. Furthermore, a storage chamber is formed in the internal space of the side portion. The atomization module is provided in the storage chamber. The liquid guide hole is provided to face and communicate with the liquid supply hole and the first sub-liquid guide groove, respectively. The liquid guide hole and the liquid supply hole form the liquid guide path.

[0025] In some embodiments, the ceiling wall further includes a protrusion on the side facing the holder, the ceiling further includes at least one ventilation hole, and the side includes an airflow path, the ventilation hole communicating with the airflow path.

[0026] The protrusion is inserted into and fixed to the ventilation hole, and a gap is maintained between the outer periphery of the protrusion and the inner periphery of the ventilation hole, and the gap, the liquid supply hole, and the airflow path form a ventilation balance path.

[0027] In some embodiments, the ceiling portion has a recess on a side facing the sealing cover to accommodate the air guide portion.

[0028] In some embodiments, the side portion further includes a liquid collection channel, the liquid collection channel communicating with the storage chamber and in contact with the liquid guiding channel.

[0029] In some embodiments, the fixing unit further comprises a bottom base, the holder and the bottom base being removably connected.

[0030] In some embodiments, a seal ring is further provided between the outer periphery of the bottom base and the inner periphery of the casing.

[0031] In some embodiments, the bottom base further comprises a conductive member, the conductive member being connected to the heating element.

[0032] The present invention further comprises an electronic aerosol generating device including an atomizer as described in any of the above embodiments and a power supply connected to the atomizer. Effect of the Invention

[0033] The present invention has the following beneficial effects. That is, the atomizer includes a casing, a fixed unit, and an atomization module. The atomization module includes a liquid guide and a heating element. The liquid guide is provided with an air guide hole that penetrates in the vertical direction. The liquid guide is further provided with at least one liquid guide groove. The at least one liquid guide groove includes at least one first sub-liquid guide groove and at least one second sub-liquid guide groove. The first sub-liquid guide groove communicates with the second sub-liquid guide groove. The first sub-liquid guide groove communicates with the liquid guide path. An atomization surface is formed on the wall surface where the air guide hole and the second sub-liquid guide groove face each other, and a heating element is provided on the atomization surface. The air guide hole is provided at the center position of the liquid guide close to the air supply port of the atomizer. The aerosol generated by the atomization module can enter the air guide tube directly through the air guide hole. Since the flow path of the aerosol is short, the temperature drop is unlikely to affect the smoking experience, and the smoking experience is closer to the original taste of the atomized liquid. In addition, the condensation of the aerosol caused by the temperature drop during the flow process can be effectively avoided, so that the condensed liquid generated can be prevented from flowing together with the aerosol and being inhaled by the consumer. In addition, the condensed liquid can be prevented from damaging the atomizer or the power supply device, so that the service life of the atomizer can be effectively extended. In addition, since the liquid guide is supplied from the top, liquid leakage or spillage is less likely to occur compared to when liquid is supplied from the side. In addition, the atomization module is easier to install, and fewer sealing parts are required.

[0034] In order to more clearly explain the technical solution of the present invention, the present invention will be further described below in combination with drawings and embodiments. It should be understood that the following drawings only illustrate some embodiments of the present invention, and should not be considered as limiting the scope. Those skilled in the art can also obtain other related drawings from these drawings without requiring creative labor. [Brief description of the drawings]

[0035] [Figure 1]FIG. 1 is a schematic front structural diagram of an atomizer according to some embodiments of the present invention. [Diagram 2] FIG. 2 is a schematic structural diagram of the bottom surface of an atomizer according to some embodiments of the present invention. [Diagram 3] FIG. 3 is a schematic structural diagram 1 of an atomizer according to some embodiments of the present invention. [Figure 4] FIG. 4 is a schematic structural diagram 2 of an atomizer in some embodiments of the present invention. [Diagram 5] FIG. 5 is an exploded view 1 of an atomizing body according to some embodiments of the present invention. [Figure 6] FIG. 6 is an exploded view 2 of the atomizing body in some embodiments of the present invention. [Figure 7] FIG. 7 is a cross-sectional view of a holder according to some embodiments of the present invention. [Figure 8] FIG. 8 is a cross-sectional view of a holder combined with a sealing cover in some embodiments of the present invention. [Figure 9] FIG. 9 is a cross-sectional view of a holder combined with a sealing cover and a nebulizing module in some embodiments of the present invention. [Figure 10] FIG. 10 is a schematic structural diagram of an atomization module in some embodiments of the present invention. [Figure 11] FIG. 11 is an exploded view of an atomization module according to some embodiments of the present invention. [Figure 12] FIG. 12 is a partial cross-sectional view of an atomization module according to some embodiments of the present invention. [Figure 13] FIG. 13 is a schematic structural diagram of an atomization module in some other embodiments of the present invention. [Figure 14] FIG. 14 is an exploded view of the atomization module in accordance with some alternative embodiments of the present invention. [Figure 15] FIG. 15 is a partial cross-sectional view of an atomization module according to some alternative embodiments of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] In order to make the technical features, objectives and effects of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "ceiling", "bottom", "inside", "outside", "top", "tail" and the like are directions or positional relationships based on the drawings, and the configuration and operation of a specific direction are merely for the convenience of describing the technical solution, and do not indicate that the indicated device or component must have a specific direction. Therefore, they should not be interpreted as limiting the present invention.

[0037] It should be further explained that unless otherwise clearly specified and limited, the terms "attach", "connect", "connect", "fix", "install" and the like should be interpreted broadly. For example, it may be a fixed connection, a removable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be a direct connection, an indirect connection through an intermediate medium, an internal connection between two components, or an interaction between two components. In addition, when a component is referred to as being "on" or "under" another component, the component may be "directly" or "indirectly" located on the other component, and there may be one or more intermediate components. In addition, the terms "first", "second", "third", and the like are merely for the convenience of describing the technical solution, and should not be interpreted as expressing or implying a relative importance or the number of technical features to be pointed out. Thus, when a feature is qualified as "first," "second," "third," etc., it may explicitly or implicitly include one or more of the features. A person skilled in the art can interpret the specific meaning of the above terms in the present invention according to the specific circumstances.

[0038] In the following description, for purposes of explanation and not limitation, specific details are presented, such as particular systems, structures, techniques, etc., to provide a thorough understanding of embodiments of the present invention. However, it will be apparent to one skilled in the art that the present invention can be practiced in other embodiments that do not include these specific details. In other circumstances, detailed descriptions of well-known systems, devices, electrical circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary details.

[0039] The present invention discloses an electronic aerosol generating device, which may include an atomizer and a power supply device connected to the atomizer, which can be applied to, but is not limited to, electronic cigarettes or cosmetic medicine, which can atomize a liquid to be atomized (such as tobacco liquid or medicine liquid) by heating to form an aerosol.

[0040] 1 to 6, the present invention provides an atomizer that may include a casing 10 and an atomizing body provided in the casing 10. The atomizing body includes a fixed unit 20 and an atomizing module 30 provided in the fixed unit 20.

[0041] The casing 10 has a liquid storage chamber 11 and an air guide tube 12. The air guide tube 12 is provided to extend in the vertical direction. The atomizing body is provided with an air guide path and a liquid guide path. The air guide path is connected to and communicates with the air guide tube 12, and the liquid guide path is communicated with the liquid storage chamber 11.

[0042] 10 to 12 are combined. Alternatively, FIGS. 13 to 15 are combined. The atomization module 30 may include a liquid guiding module 31 and a heating element 32. The liquid guiding module 31 is provided with an air hole 311 that penetrates in the vertical direction. The liquid guiding module 31 is further provided with at least one liquid guiding groove 312. The at least one liquid guiding groove 312 includes at least one first sub-liquid guiding groove 3121 and at least one second sub-liquid guiding groove 3122. The first sub-liquid guiding groove 3121 communicates with the second sub-liquid guiding groove 3122. The first sub-liquid guiding groove 3121 communicates with the liquid guiding path.

[0043] An atomization surface 3122a is formed on the wall surface where the air guide hole 311 and the second sub-liquid guide groove 3122 face each other, and a heating element 32 is provided on the atomization surface 3122a.

[0044] As can be seen, the air hole 311 is located at the center of the liquid guide 31 close to the air outlet of the atomizer. The aerosol generated by the atomization module 30 can directly pass through the air hole 311 and enter the air guide tube 12. Since the flow path of the aerosol is short, the temperature drop is unlikely to affect the smoking experience, and the smoking experience is closer to the original taste of the atomization liquid. In addition, the condensation of the aerosol caused by the temperature drop during the flow process can be effectively prevented, so that the condensed liquid generated can be prevented from flowing together with the aerosol and being inhaled by the consumer. In addition, the condensed liquid can be prevented from damaging the atomizer or the power supply device, so that the service life of the atomizer can be effectively extended.

[0045] The heating element 32 is mainly provided on a wall surface facing the air hole 311 and the second sub-liquid guide groove 3122. The heating element 32 mainly heats and atomizes the atomization liquid in the second sub-liquid guide groove 3122. The atomization liquid in the liquid storage chamber 11 first passes through the first sub-liquid guide groove 3121 and then can enter the second sub-liquid guide groove 3122. When the atomization liquid in the second sub-liquid guide groove 3122 is consumed, the atomization liquid in the first sub-liquid guide groove 3121 is replenished into the second sub-liquid guide groove 3122. This makes the liquid supply smooth and makes it less likely that liquid will leak or seep out.

[0046] Specifically, the liquid guiding groove 31 has a substantially hexahedral structure and has an upper surface and a lower surface that are opposite to each other. The liquid guiding groove 312 is a non-through groove structure that is recessed from the upper surface to the lower surface.

[0047] 12 , in some embodiments, the depth of the first sub-liquid guiding groove 3121 is smaller than the depth of the second sub-liquid guiding groove 3122, and the width of the vertical cross section of the first sub-liquid guiding groove 3121 is equal to the width of the vertical cross section of the second sub-liquid guiding groove 3122.

[0048] In some embodiments, the depth of the first sub-liquid guiding groove 3121 is smaller than the depth of the second sub-liquid guiding groove 3122, and the width of the vertical cross section of the first sub-liquid guiding groove 3121 is larger than the width of the vertical cross section of the second sub-liquid guiding groove 3122.

[0049] As can be seen, the relative size of the depth between the first sub-liquid guide groove 3121 and the second sub-liquid guide groove 3122 and the width of the longitudinal section can be adjusted as necessary. The heating element 32 is mainly provided on the wall surface facing the air guide hole 311 and the second sub-liquid guide groove 3122. The heating element 32 mainly heats and atomizes the atomization liquid in the second sub-liquid guide groove 3122. The atomization liquid in the liquid storage chamber 11 first passes through the first sub-liquid guide groove 3121 and then can enter the second sub-liquid guide groove 3122. When the atomization liquid in the second sub-liquid guide groove 3122 is consumed, the atomization liquid in the first sub-liquid guide groove 3121 is replenished into the second sub-liquid guide groove 3122. This makes the liquid supply smooth and makes it difficult for liquid to leak or seep out.

[0050] In some embodiments, as shown in FIG. 10, the liquid guiding groove 312 is provided on the outer periphery of the air guiding hole 311. The liquid guiding groove 312 may have a substantially C-shaped or U-shaped structure. The liquid guiding groove 312 may include two first sub-liquid guiding grooves 3121 and one second sub-liquid guiding groove 3122. Both ends of the second sub-liquid guiding groove 3122 are connected to and communicated with the two first sub-liquid guiding grooves 3121, respectively. The atomization liquid first passes through the two first sub-liquid guiding grooves 3121 and then can be introduced into the second sub-liquid guiding groove 3122.

[0051] In some embodiments, the number of the liquid guiding grooves 312 is at least two, as shown in Fig. 13. The at least two liquid guiding grooves 312 are spaced apart from each other on the outer periphery of the air hole 311. The second sub-liquid guiding grooves 3122 of the at least two liquid guiding grooves 312 communicate with each other. Alternatively, the second sub-liquid guiding grooves 3122 of the at least two liquid guiding grooves 312 do not communicate with each other. Preferably, the second sub-liquid guiding grooves 3122 of the at least two liquid guiding grooves 312 do not communicate with each other, and the atomization amount can be controlled independently.

[0052] In some embodiments, the wall surface between the air hole 311 and the second sub-liquid guide groove 3122 may be a flat surface or a circular arc surface. That is, the atomization surface 3122a may be a flat surface structure (as shown in FIG. 12) or a circular arc surface structure (as shown in FIG. 13).

[0053] In some embodiments, the bottom of the liquid guide 31 is further provided with a liquid storage groove 313. The liquid storage groove 313 avoids the liquid guide groove 312 to avoid direct communication with the liquid guide groove 312. The liquid storage groove 313 may be disposed so that its opening faces downward. The width of the liquid storage groove 313 may be 0.1 to 0.8 mm, and may be selected, for example, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm. The depth of the liquid storage groove 313 may be 0.5 to 2 mm, and may be, for example, 0.5 mm, 1 mm, 1.5 mm, or 2 mm.

[0054] As can be understood, in some special circumstances, for example, when the outside air pressure is low, the air pressure inside the casing 10 (or the atomizer) becomes higher than the outside air pressure, and a pressure difference exists between them. Then, the gas inside the casing 10 expands, and some of the atomization liquid in the liquid guide 31 may be pushed out of the liquid guide 31. In response to this, the internal space of the liquid storage groove 313 can form a storage space for storing the part of the atomization liquid. In addition, since the width of the liquid storage groove 313 is relatively narrow, the atomization liquid can be located in the liquid storage groove 313 due to capillary tension without leaking out of the liquid guide 31. This can provide good liquid leakage and liquid leakage prevention effects.

[0055] Preferably, the cross section of the liquid storage groove 313 is arc-shaped. The cross section of the liquid storage groove 313 may be C-shaped or U-shaped, or may be a straight line or L-shaped, etc. The structure and size of the liquid storage groove 313 can be selected and installed according to actual needs, and are not specifically limited here.

[0056] In some embodiments, the heating element 32 may include a heating portion 321 and at least two electrode portions 322 connected to the heating portion 321. The heating portion 321 is attached or embedded on the atomizing surface 3122a, and the ends of the at least two electrode portions 322 are attached or embedded in the liquid guide 31. Preferably, the heating element 32 has a planar structure. The planar structure is relatively flat and difficult to deform, and is easier to be combined with and processed by the liquid guide 31. In addition, when the ends of the electrode portions 322 are embedded in the bottom of the liquid guide 31, it is possible to avoid unstable contact of the circuit caused by factors such as pulling of the electrode portions 322, and the stability of the operation of the atomizer can be improved.

[0057] In some embodiments, the liquid guide 31 may be made of porous ceramic. It is to be understood that the liquid guide 31 may be made of porous materials with micro-pores that have a capillary effect, such as foam metal, porous glass, or rigid glass fiber pipe.

[0058] The heating element 32 generates an aerosol that can be directly inhaled by the user by heating the atomization liquid stored in the second sub-liquid-guiding groove 3122 after being energized. The heating unit 321 may be a sheet-shaped heating mesh. The heating unit 321 is attached and fixed to the atomization surface 3122a. The heating unit 321 may be a heating wire that can be folded to form a tray shape, or a lattice-shaped heating sheet. The heating unit 321 may be sintered to form an integral structure with the liquid-guiding groove 31 and attached to the atomization surface 3122a. In some embodiments, the heating unit 321 may further be a heating circuit, a heating track, a heating coating layer, a heating film, or the like formed on the atomization surface 3122a. The structure and shape of the heating unit 321 may be diversified and may be selected as necessary. The heating mesh, heating wire, heating sheet, heating circuit, heating track, heating coating layer, heating film, or the like is provided corresponding to the second sub-liquid-guiding groove 3122. This makes the distance between second sub-liquid-guiding groove 3122 and heat generating portion 321 the shortest, so that the liquid to be atomized, such as tobacco liquid, quickly reaches heat generating portion 321 and is atomized. Furthermore, electrode portion 322 may have a sheet-like structure, or a columnar or rod-like structure.

[0059] Preferably, the material of the heating element 32 may be a metal material, a metal alloy, graphite, carbon, conductive ceramic, or a composite material of other ceramic materials and a metal material having a suitable impedance. The metal or alloy material having a suitable impedance includes at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel chromium alloy, nickel iron alloy, iron chromium alloy, iron chromium aluminum alloy, titanium alloy, iron manganese aluminum alloy, stainless steel, etc.

[0060] Please refer to Figures 3 and 4. In some embodiments, a liquid storage chamber 11 for storing liquid to be atomized is provided inside the casing 10. An air supply hole is provided at the upper end of the casing 10, and an air guide tube 12 extends downward around the periphery of the air supply hole.

[0061] Furthermore, the casing 10 is made of a hard insulating material, for example, phenol plastic, polyurethane plastic, epoxy plastic, unsaturated polyester plastic, furan plastic, silicone resin, allyl resin, or modified resin thereof. Roughly speaking, the casing 10 has a vertically elongated structure extending along the central axis. That is, the length in the central axis direction is much larger than the width and thickness in the two perpendicular directions in the cross section. In addition, an air supply hole is provided at the upper end of the casing 10, and an air guide tube 12 extends downward from the periphery of the air supply hole. The lower end of the casing 10 is open. Inside the casing 10, a liquid storage chamber 11 for storing the atomization liquid is formed. The air guide tube 12 is a metal member made of, for example, stainless steel, and has a hollow circular tube structure. Naturally, the air guide tube 12 may be manufactured by preparing a polymeric polymer with excellent stability. The material, shape and size of the air guide pipe 12 can be selected and installed as required, and are not specifically limited here.

[0062] 3 to 9. In some embodiments, the fixing unit 20 includes a sealing cover 21 and a holder 22 that are assembled together. The sealing cover 21 and the holder 22 may both be made of insulating materials, for example, silicone or rubber materials.

[0063] 5 and 6, the sealing cover 21 is cylindrical. The sealing cover 21 is provided to cover the upper part of the holder 22. The sealing cover 21 may include a ceiling wall 211 and a peripheral wall 212 extending from the ceiling wall 211. The ceiling wall 211 is provided with an air guide portion 2111 and at least one liquid supply hole 2112. The air guide portion 2111 is provided to extend in the vertical direction so as to be connected to and communicate with the air guide pipe 12. The liquid supply hole 2112 is also communicated with the liquid storage chamber 11. The number and positions of the liquid supply holes 2112 correspond to the first sub-liquid guide groove 3121.

[0064] The holder 22 is cylindrical. The holder 22 includes a ceiling portion 221 and a side portion 222 extending from the ceiling portion 221. The ceiling portion 221 is provided with at least one liquid guide hole 2211. The inner space of the side portion 222 defines a storage chamber A (as shown in Figs. 7 and 8). The atomization module 30 is provided in the storage chamber A (as shown in Fig. 9). The atomization module 30 may be attached to the storage chamber A by interference fit.

[0065] The liquid guide hole 2211 is disposed opposite to and communicates with the liquid supply hole 2112 and the first sub-liquid guide groove 3121. The liquid guide hole 2211 and the liquid supply hole 2112 form a liquid guide path. The number and positions of the liquid guide holes 2211 correspond to the first sub-liquid guide groove 3121. Preferably, the hole diameters of the liquid supply holes 2112 and the liquid guide holes 2211 may be appropriately adjusted according to actual needs in order to further adjust the liquid supply flow rate and liquid supply flow speed of the atomization liquid.

[0066] Of course, the above-mentioned storage chamber A may be formed to be recessed under the ceiling portion 221. The shape and spatial size of the storage chamber A are similar to those of the liquid guiding chamber 31.

[0067] In some embodiments, the ceiling wall 211 is further provided with a protrusion 2113 on the side facing the holder 22. The ceiling 221 is further provided with at least one ventilation hole 2212, and the side 222 is provided with an airflow path 2221 (shown in FIG. 5). The ventilation hole 2212 communicates with the airflow path 2221. The airflow path 2221 may penetrate the side wall of the side 222 and extend to communicate with the ventilation hole 2212 at the side 222. The airflow path 2221 may be provided in one or more. Of course, the airflow path 2221 may be provided in the ceiling 221 and may penetrate and extend from the side wall of the ceiling 221 to the ventilation hole 2212.

[0068] The protrusion 2113 is inserted and fixed into the ventilation hole 2212. A gap 2212a is formed between the outer periphery of the protrusion 2113 and the inner periphery of the ventilation hole 2212. The width of the gap 2212a may be about 0.1 to 0.8 mm, for example, 0.1 mm, 0.2 mm, 0.3 mm, or 0.4 mm. Reducing the cross-sectional area of ​​gap 2212a can ensure that no liquid or oil leaks occur (reducing the cross-section allows the liquid to collect in gap 2212a, and the capillary tension of the liquid in gap 2212a resists the pressure in reservoir chamber 11, forming a valve made of liquid. When the air pressure in reservoir chamber 11 falls below a certain threshold, the outside air pushes the liquid in ventilation hole 2212 into reservoir chamber 11. Then, when the outside air is replenished in reservoir chamber 11 and the air pressure in reservoir chamber 11 is balanced, the liquid flows back into ventilation hole 2212, and the tension of the liquid forms a seal). Forming a small hole in holder 22 is more difficult to process. Therefore, the convex portion 2113 and the ventilation hole 2212 that are combined with each other are designed in the sealing cover 21 and the holder 22, and the size of the cross section of the convex portion 2113 is made slightly smaller than the size of the cross section of the ventilation hole 2212, thereby forming a small gap 2212a by combining them. In addition, a gap is also formed between the ceiling wall 211 and the ceiling portion 221 so that the gap 2212a can communicate with the liquid supply hole 2112.

[0069] The gap 2212a, the liquid supply hole 2112, and the airflow path 2221 form a ventilation balance path E (shown in FIGS. 3 and 8).

[0070] As can be understood, when the liquid for atomization in the liquid storage chamber 11 is consumed, the air pressure in the liquid storage chamber 11 becomes lower than the outside air pressure due to the remaining space, and outside air tends to enter the liquid storage chamber 11. At this time, if the air enters through the micro-hole path of the liquid guide 31, it will occupy the micro-hole path and affect the supply of liquid. Therefore, it is necessary to allow outside air to enter the liquid storage chamber 11 through the ventilation balance path E so that the liquid guide efficiency of the atomization module 30 is not affected. The ventilation balance path E balances the air pressure in the liquid storage chamber 11, thereby ensuring smooth liquid supply from the atomization module 30.

[0071] In some embodiments, the ceiling part 221 is provided on the side facing the sealing cover 21 with a groove 2213 for receiving the air guide part 2111. They may be fixed by interference fitting. Preferably, the groove 2213 is in the form of a mounting groove (as shown in FIG. 7). The internal space of the groove 2213 combined with the air guide part 2111 forms an air guide path.

[0072] In some embodiments, referring to FIG. 6 and FIG. 7, the side portion 222 is further provided with a liquid storage path B. The liquid storage path B is connected to the storage chamber A and the liquid guide 31, respectively. The cross section of the liquid storage path B has a substantially T-shaped structure. By providing the liquid storage path B, it is possible to prevent the filling portion from becoming too thick and deforming during the injection molding of the holder 22. In addition, as another effect, the formed groove can store a part of the liquid. For example, in the case of ventilation that is different from normal, such as at high altitude or low pressure, the air pressure in the liquid storage chamber 11 increases, causing the gas to expand and pushing out a part of the atomization liquid. As a result, the excess atomization liquid may pass through the liquid guide 31 or the ventilation hole 2212 and reach the outside of the liquid storage chamber 11. However, in this case, since a small amount of the atomization liquid can be stored in the liquid storage path B, the atomization liquid does not drip and leak out of the atomizer. In addition, since the liquid storage path B extends into the upper storage chamber A, when the amount of atomization liquid on the liquid guide 31 is small, the liquid storage path B can absorb the atomization liquid by capillary action. This makes it possible to prevent the atomization liquid from leaking or being wasted.

[0073] 3, 4, 5 and 6, in some embodiments, the fixing unit 20 may further include a gasket 26. The gasket 26 is provided in the accommodation chamber A. The gasket 26 is provided with an air guiding through hole 261 and a liquid guiding through hole 262. The air guiding through hole 261 communicates with the air guiding hole 311. The liquid guiding through hole 262 is provided to face and communicate with the liquid guiding hole 2211 and the second sub-liquid guiding groove 3121, respectively.

[0074] 3, 4, 5 and 6 in combination, in some embodiments, the fixing unit 20 further includes a bottom base 23. The holder 22 and the bottom base 23 are detachably connected. Preferably, a seal ring 24 is further provided between the outer periphery of the bottom base 23 and the inner periphery of the casing 10.

[0075] The bottom base 23 is further provided with a conductive member 25. The conductive member 25 is connected to a heating element 32.

[0076] Specifically, the bottom base 23 may include a bottom wall 231 and a support wall 232 extending from the bottom wall 231. The support wall 232 may have an annular structure so that the bottom base 23 has a substantially cylindrical structure or a semi-enclosed structure. The bottom wall 231 may be provided with an air supply section 2311. The air supply section 2311 may have a substantially cylindrical or columnar shape. The bottom wall 231 may further include a mounting groove 2312. The conductive member 25 is inserted into the mounting groove 2312 and connected to the electrode section 322 of the heating element 32. Preferably, the conductive member 25 is a conductive pin. The conductive pin 25 may further support the liquid guiding member 31 to a certain degree.

[0077] The support wall 232 is provided with a first hook groove 2321. The side portion 222 is provided with a first hook portion 2222 that hooks into the first hook groove 2321. These can be connected by hooking. In addition, a second hook portion 2322 is further provided on the outer side of the support wall 232. A second hook groove 10a may be further provided on the inner wall adjacent to the opening portion of the casing 10. The second hook portion 2322 and the second hook groove 10a are connected by hooking with each other.

[0078] In addition, an annular seal groove 232a may be further provided on the outer side of the support wall 232. The above-mentioned seal ring 24 is installed in the seal groove 232a to improve the sealing performance of the atomizer. The seal ring 24 may be made of rubber or silicone.

[0079] 3 and 4, when the atomizer is in operation, the liquid to be atomized in the liquid storage chamber 11 passes through the liquid guide path and enters the first sub-liquid guide groove 3121, and is then introduced from the first sub-liquid guide groove 3121 into the second sub-liquid guide groove 3122. The electrode portion 322 of the heating element 32 supplies electricity, and the heating portion 321 heats and atomizes the liquid to be atomized that has permeated into the atomization surface 3122a, thereby generating an aerosol. As shown in FIG. 3, route C is an air guide route, and route D is a liquid guide route.

[0080] Outside air enters from the air intake section 2311 of the bottom base 23 to the air guide hole 311 of the atomization module 30, and the aerosol is discharged through the air guide path and the air guide pipe 12, thereby providing the aerosol to the consumer.

[0081] As can be seen, the air hole 311 is located at the center of the liquid guide 31 close to the air outlet of the atomizer. The aerosol generated by the atomization module 30 can directly pass through the air hole 311 and enter the air guide tube 12. Since the flow path of the aerosol is short, the temperature drop is unlikely to affect the smoking experience, and the smoking experience is closer to the original taste of the atomization liquid. In addition, the condensation of the aerosol caused by the temperature drop during the flow process can be effectively prevented, so that the condensed liquid generated can be prevented from flowing together with the aerosol and being inhaled by the consumer. In addition, the condensed liquid can be prevented from damaging the atomizer or the power supply device, so that the service life of the atomizer can be effectively extended.

[0082] In addition, since the liquid guide 31 is supplied from above, liquid leakage or spillage is less likely to occur compared to when liquid is supplied from the side. Also, the nebulization module 30 is easier to install and requires fewer sealing parts.

[0083] It is understood that the above examples only show the preferred embodiments of the present invention, and the description is relatively specific and detailed, but this should not be interpreted as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features and make some modifications and improvements without departing from the concept of the present invention, all of which are within the scope of protection of the present invention. Therefore, any equivalent modifications and supplements made within the scope of the claims of the present invention shall be included in the scope covered by the claims of the present invention.

Claims

1. The device includes a casing (10) and an atomizing body provided in the casing (10), the atomizing body including a fixed unit (20) and an atomizing module (30) provided in the fixed unit (20); The casing (10) has a liquid storage chamber (11) and an air guide tube (12), the air guide tube (12) is provided so as to extend in a vertical direction, the atomizing body is provided with an air guide path and a liquid guide path, the air guide path is connected to and communicates with the air guide tube (12), and the liquid guide path is communicated with the liquid storage chamber (11), The atomization module (30) includes a liquid guiding module (31) and a heating element (32). The liquid guiding module (31) is provided with an air guiding hole (311) that penetrates the liquid guiding module (31). The liquid guiding module (31) further includes at least one liquid guiding groove (312). The at least one liquid guiding groove (312) includes at least one first sub-liquid guiding groove (3121) and at least one second sub-liquid guiding groove (3122). The first sub-liquid guiding groove (3121) is connected to the second sub-liquid guiding groove (3122), and the first sub-liquid guiding groove (3121) is connected to the liquid guiding path. An atomizer characterized in that an atomization surface (3122a) is formed on a wall surface where the air guide hole (311) and the second sub-liquid guide groove (3122) face each other, and the heating element (32) is provided on the atomization surface (3122a).

2. The atomizer of claim 1, characterized in that the depth of the first sub-liquid-guide groove (3121) is smaller than the depth of the second sub-liquid-guide groove (3122), and the width of the vertical cross-section of the first sub-liquid-guide groove (3121) is equal to the width of the vertical cross-section of the second sub-liquid-guide groove (3122).

3. The atomizer of claim 1, characterized in that the depth of the first sub-liquid-guiding groove (3121) is smaller than the depth of the second sub-liquid-guiding groove (3122), and the width of the vertical cross-section of the first sub-liquid-guiding groove (3121) is larger than the width of the vertical cross-section of the second sub-liquid-guiding groove (3122).

4. The atomizer according to claim 1, characterized in that the number of the liquid guide grooves (312) is at least two, and the at least two liquid guide grooves (312) are spaced apart on the outer periphery of the air guide hole (311).

5. The atomizer according to claim 4, characterized in that the second sub-liquid-conducting grooves (3122) of at least two of the liquid-conducting grooves (312) are connected to each other, or the second sub-liquid-conducting grooves (3122) of at least two of the liquid-conducting grooves (312) are not connected to each other.

6. The atomizer according to claim 1, wherein a wall surface between the air guide hole (311) and the second sub-liquid guide groove (3122) facing each other is a flat surface or a circular arc surface.

7. The atomizer described in claim 1, characterized in that the heating element (32) includes a heating portion (321) and at least two electrode portions (322) connected to the heating portion (321), the heating portion (321) is affixed or embedded to the atomization surface (3122a), and ends of the at least two electrode portions (322) are affixed or embedded to the liquid-guiding portion (31).

8. The atomizer according to claim 1, characterized in that a liquid collecting groove (313) is further provided at the bottom of the liquid guiding member (31).

9. The atomizer according to claim 8, characterized in that the cross section of the liquid collection groove (313) is arc-shaped.

10. The fixing unit (20) includes a sealing cover (21) and a holder (22) that are assembled together; The sealing cover (21) is cylindrical, and includes a ceiling wall (211) and a peripheral wall (212) extending from the ceiling wall (211). The ceiling wall (211) is provided with an air guide section (2111) and at least one liquid supply hole (2112). The air guide section (2111) is provided extending vertically so as to be connected to and communicate with the air guide pipe (12). The liquid supply hole (2112) communicates with the liquid storage chamber (11). The atomizer of claim 1, characterized in that the holder (22) is cylindrical, includes a ceiling portion (221) and a side portion (222) extending from the ceiling portion (221), the ceiling portion (221) is provided with at least one liquid guide hole (2211), and an accommodating chamber (A) is formed in the internal space of the side portion (222), the atomization module (30) is provided in the accommodating chamber (A), the liquid guide hole (2211) is provided opposite the liquid supply hole (2112) and the first sub-liquid guide groove (3121) and communicates with them, and the liquid guide hole (2211) and the liquid supply hole (2112) form the liquid guide path.

11. A convex portion (2113) is further provided on the side of the ceiling wall (211) facing the holder (22), at least one ventilation hole (2212) is further provided in the ceiling portion (221), an air flow path (2221) is provided in the side portion (222), and the ventilation hole (2212) is in communication with the air flow path (2221), The atomizer described in claim 10, characterized in that the convex portion (2113) is inserted and fixed into the ventilation hole (2212), and a gap (2212a) is maintained between the outer periphery of the convex portion (2113) and the inner periphery of the ventilation hole (2212), and the gap (2212a), the liquid supply hole (2112) and the air flow path (2221) form a ventilation balance path (E).

12. The atomizer according to claim 11, characterized in that the ceiling portion (221) has a groove (2213) on the side facing the sealing cover (21) for accommodating the air guide portion (2111).

13. The atomizer according to claim 11, characterized in that the side portion (222) further has a liquid storage path (B), the liquid storage path (B) being connected to the storage chamber (A) and the liquid guide (31), respectively.

14. The atomizer according to any one of claims 10 to 13, characterized in that the fixing unit (20) further comprises a bottom base (23), and the holder (22) and the bottom base (23) are removably connected.

15. The atomizer according to claim 14, further comprising a seal ring (24) between the outer periphery of the bottom base (23) and the inner periphery of the casing (10).

16. The atomizer according to claim 14, characterized in that the bottom base (23) is further provided with a conductive member (25), the conductive member (25) being connected to the heating element (32).

17. An electronic aerosol generating device comprising the atomizer according to any one of claims 1 to 16 and a power supply device connected to the atomizer.

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