Electronic atomization device and its atomizer

Abstract

To provide an atomizer excellent in liquid leakage prevention effect.SOLUTION: An atomizer includes: a liquid-storage case in which a liquid-storage chamber is formed; a base installed at one end of the liquid-storage case; and a sealing member installed in the liquid-storage case to cover the base. In the sealing member, an intake open hole is installed. The intake open hole includes an intake section facing the base and an exhaust section separate from the base. A cross sectional area of the intake section is larger than a cross sectional area of the exhaust section. When intake is stopped, a vapor backflows by action of negative pressure. The vapor decreases flow rate when heading for the intake section from the exhaust section, reduces backflow of the vapor, and reduces condensed liquid generated as the vapor backflows. A cross sectional area of an exhaust section is small, and the condensed liquid is unlikely to leak from the exhaust section, so that the liquid leakage can be decreased.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to the field of atomization, and more particularly to electronic atomization devices and atomizers thereof. [Background technology]

[0002] An electronic atomizer mainly consists of an atomizer and a power supply. The base of a conventional atomizer is often sealed with a seal ring. However, most of the intake holes in the seal ring are straight through holes, which makes it less effective at preventing leakage. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENT The technical problem to be solved by the present invention is to provide an improved atomizer and an electronic atomization device having the atomizer in view of the above-mentioned shortcomings in the prior art. [Means for solving the problem]

[0004] The technical solutions adopted in the present invention to solve the technical problems are as follows:

[0005] The atomizer includes a liquid storage case having a liquid storage chamber formed therein, a base installed at one end of the liquid storage case, and a sealing member installed within the liquid storage case and covering the base.

[0006] The sealing member has an intake through hole, the intake through hole including an intake section facing the base and an exhaust section spaced apart from the base, the intake section having a cross-sectional area larger than that of the exhaust section.

[0007] In some embodiments, there is a gradual transition between the intake section and the exhaust section.

[0008] In some embodiments, the cross-sectional shape of the intake section is the same as or different from the cross-sectional shape of the exhaust section.

[0009] In some embodiments, the sealing member includes a body portion and a boss portion. The body portion is annular and is disposed between the base and the liquid storage case in a sealing manner. Two opposing sides of the boss portion are respectively connected to two opposing sides of the body portion. The intake through-hole is formed in the boss portion.

[0010] In some embodiments, an end face of an upper end of the intake through hole is higher than an end face of an upper end of the boss portion.

[0011] In some embodiments, two opposite sides of the boss are respectively connected to opposite short sides of the body.

[0012] In some embodiments, a recess hole is formed between each of two opposing sides of the boss portion and each of two opposing sides of the body portion.

[0013] In some embodiments, the boss portion further includes a guide groove that connects the intake through hole and the evacuation hole.

[0014] In some embodiments, the sealing member further includes two mating portions extending away from the base from two opposite sides of the body portion, respectively.

[0015] In some embodiments, the two fitting portions are respectively disposed in the longitudinal direction of the main body portion.

[0016] In some embodiments, the two mating portions, the body portion and the boss portion are integrally molded.

[0017] In some embodiments, the base defines an intake passageway in communication with the intake section.

[0018] In some embodiments, the base includes an intake boss, and the intake passage includes a plurality of intake holes formed in the intake boss.

[0019] In some embodiments, a cross-sectional area of ​​an exhaust port at an end of the exhaust section remote from the intake section is smaller than a cross-sectional area of ​​the intake boss.

[0020] In some embodiments, the plurality of intake slits includes a number of first intake slits and a number of second intake slits surrounding the outside of the number of first intake slits, and the intake cross-sectional areas of the first intake slits and the second intake slits are different.

[0021] In some embodiments, the surface of the intake boss facing the reservoir chamber is convex.

[0022] In some embodiments, the atomizer further includes a liquid absorber disposed in the liquid storage case, and an atomization chamber communicating with the exhaust section is formed between the liquid absorber and the sealing member.

[0023] In some embodiments, the atomizer further includes a heating base disposed within the reservoir case and engaged and connected to the base, the liquid absorber being accommodated between the heating base and the base.

[0024] The present invention further provides an electronic atomization device, comprising: an atomizer as described above; and a power supply electrically connected to the atomizer. Effect of the Invention

[0025] The practice of the present invention has at least the following beneficial effects:

[0026] During inhalation, the flow rate of the airflow can be increased by concentrating the airflow as it travels from the intake section to the exhaust section, so that the aerosol can be rapidly discharged along with the airflow. Also, when inhalation is stopped, the vapor flows back due to the effect of negative pressure. However, the flow rate of the vapor decreases as it travels from the exhaust section to the intake section, so the backflow of the vapor can be reduced, and the condensate generated by the backflow of the vapor can be reduced. Also, the cross-sectional area of ​​the exhaust section is small, so that the condensate is less likely to leak from the exhaust section, so that the leakage of liquid can be reduced.

[0027] The present invention will be further described below in combination with the drawings and examples. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 is a schematic diagram of the three-dimensional structure of an electronic atomization device according to some embodiments of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of the vertical cross-sectional structure of the atomizer in the first embodiment of the present invention. [Diagram 3] FIG. 3 is a schematic diagram of the three-dimensional structure of the heat generating module in FIG. [Figure 4] FIG. 4 is a schematic diagram of the AA cross-sectional structure of the heat generating module shown in FIG. [Diagram 5] FIG. 5 is a schematic diagram of the cross-sectional structure of the heat generating module shown in FIG. [Figure 6] FIG. 6 is a schematic diagram of an exploded structure of the heat generating module shown in FIG. [Figure 7] FIG. 7 is a schematic diagram of the three-dimensional structure of the base in FIG. [Figure 8] FIG. 8 is a distribution diagram of the noise simulation of the base shown in FIG. [Figure 9] FIG. 9 is a schematic diagram of the three-dimensional structure of the sealing member in FIG. [Figure 10] FIG. 10 is a schematic diagram of the three-dimensional structure of the heat generating base in FIG. [Figure 11] FIG. 11 is a side view of the heat generating base shown in FIG. [Figure 12] FIG. 12 shows a gas-liquid two-phase distribution diagram of the liquid storage and ventilation structure when the intake is stopped in a simulation analysis of the heat generating module shown in FIG. [Figure 13] FIG. 13 shows a graph of the ventilation pressure of the heat generating module shown in FIG. [Figure 14] FIG. 14 shows a schematic diagram of the three-dimensional structure of a heat generating module in some embodiments of the prior art. [Figure 15] FIG. 15 shows a graph of the ventilation pressure of the heat generating module shown in FIG. [Figure 16] FIG. 16 shows a plan view of a base in a first alternative embodiment of the present invention. [Figure 17] FIG. 17 is a distribution diagram of the noise simulation of the base shown in FIG. [Figure 18] FIG. 18 shows a plan view of the base in some embodiments of the prior art. [Figure 19] FIG. 19 is a distribution diagram of noise simulation of the base shown in FIG. [Figure 20] FIG. 20 shows a schematic diagram of the three-dimensional structure of the base in the second alternative of the present invention. [Figure 21] FIG. 21 is a schematic diagram of the longitudinal structure of the base shown in FIG. [Figure 22] FIG. 22 shows a schematic diagram of the flow of condensate in the base shown in FIG. [Figure 23] FIG. 23 is a schematic diagram showing the three-dimensional structure of a sealing member in a third alternative embodiment of the present invention. [Figure 24] FIG. 24 is a schematic diagram showing the three-dimensional structure of a sealing member in a fourth alternative embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] In order to make the technical features, objects 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, many specific details will be described in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the content of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "ceiling", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are directions or positional relationships based on the drawings or directions or positional relationships of customary arrangements when using the product of the present invention, and are merely for convenience and simplification of the description of the present invention, and do not expressly or imply that the target device or member has a specific direction and must be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used merely for convenience of description and should not be interpreted as expressing or implying relative importance or the number of technical features covered. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, in the description of the present invention, unless otherwise clearly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0032] In the present invention, unless otherwise clearly defined and limited, the terms "attached", "connected", "connected", "fixed", etc. should be interpreted broadly. For example, unless otherwise clearly limited, it may be a fixed connection, a removable connection, or an integral connection. It may also be a mechanical connection or an electrical connection. It may also be a direct connection, an indirect connection via an intermediate medium, a communication inside two members, or an interactive relationship between two members. A person skilled in the art can interpret the specific meaning of the above terms in the present invention according to the specific situation.

[0033] In the present invention, unless otherwise clearly defined and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact with each other, or that the first and second features are in indirect contact with each other via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or may simply mean that the horizontal height of the first feature is higher than that of the second feature. Furthermore, a first feature being "below," "below," and "on the lower surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or may simply mean that the horizontal height of the first feature is lower than that of the second feature.

[0034] FIG. 1 illustrates an electronic atomizer 1 according to some embodiments of the present invention. The electronic atomizer 1 can be used to inhale an aerosol and may include an atomizer 100 and a power supply 200 electrically connected to the atomizer 100. The power supply 200 is used to supply electricity to the atomizer 100. The atomizer 100 is used to accommodate a liquid substrate and, after being energized, to heat and atomize the liquid substrate to generate an aerosol. The atomizer 100 is vertically disposed above the power supply 200 and can be connected to the power supply 200 in a removable or non-removable manner.

[0035] As shown in FIG. 2, the atomizer 100 in the first embodiment of the present invention may include a liquid storage case 10 and a heat generating module 20 housed in the liquid storage case 10. A liquid storage chamber 110 for storing a liquid substrate and an exhaust path 120 for discharging an aerosol are formed in the liquid storage case 10. The heat generating module 20 includes a base module 30, an atomizing core 40, and a heat generating base module 50. The atomizing core 40 is housed in a space formed between the base module 30 and the heat generating base module 50. The atomizing core 40 communicates with the liquid storage chamber 110 to guide liquid and communicates with the exhaust path 120 to guide gas, and is used to generate an aerosol by atomizing the liquid substrate adsorbed from the liquid storage chamber 110 by heating. An atomizing chamber 420 for mixing the aerosol and air is formed between the base module 30 and the atomizing core 40.

[0036] Specifically, the liquid storage case 10 may include a housing 11 having an open bottom end, and an exhaust pipe 12 installed vertically within the housing 11. The housing 11 is cylindrical, and its cross section may be roughly an elongated oval, a track shape, etc. An annular liquid storage chamber 110 is defined between the inner wall surface of the housing 11 and the outer wall surface of the exhaust pipe 12.

[0037] The exhaust pipe 12 is connected to the inside of the ceiling wall of the housing 11 and can be installed coaxially with the housing 11. The inner wall surface of the exhaust pipe 12 defines an exhaust path 120. In this embodiment, the exhaust pipe 12 and the housing 11 are integrally molded, and can be integrally molded by, for example, an injection molding method. In other embodiments, the exhaust pipe 12 and the housing 11 may be molded separately and then assembled.

[0038] As shown in Figs. 2 to 7, the atomizing core 40 includes a liquid absorber 41 and a heating element 42 disposed on the liquid absorber 41. The liquid absorber 41 communicates with the liquid storage chamber 110 so as to guide the liquid, and is used to suck in the liquid substrate from the liquid storage chamber 110 and transfer the liquid substrate to the heating element 42. The heating element 42 is electrically connected to the power supply unit 200, and is used to generate heat when energized and then atomize the liquid substrate adsorbed from the liquid absorber 41 by heating to generate an aerosol.

[0039] The liquid absorbent 41 can be manufactured from a material having a porous capillary structure, such as porous liquid-absorbent ceramics or liquid-absorbent cotton. The liquid absorbent 41 has a liquid-absorbent surface 411 and a heat-generating surface 412. The heat-generating surface 412 is used to install the heat-generating body 42. The liquid-absorbent surface 411 is used to absorb the liquid substrate from the liquid storage chamber 110 and transfer the liquid substrate to the heat-generating surface 412 by the porous capillary structure inside the liquid absorbent 41. Specifically, in this embodiment, the liquid absorbent 41 is a bowl-shaped porous liquid-absorbent ceramic. The liquid-absorbent surface 411 is located on the side of the liquid absorbent 41 facing the liquid storage chamber 110, and the heat-generating surface 412 is located on the opposite side of the liquid absorbent 41 from the liquid storage chamber 110. The heat-generating body 42 is installed on the heat-generating surface 412. That is, the heat-generating body 42 is installed on the side of the liquid absorbent 41 facing the base module 30.

[0040] The base module 30 may include a base 31 and an electrode rod 33 inserted vertically into the base 31. The base 31 is fitted into an opening at the lower end of the housing 11 to hermetically seal the opening at the lower end of the housing 11. The base 31 may include a plate-shaped main body 311, a cylindrical side wall 312 extending upward from the outer periphery of the main body 311, and two support arms 314 extending upward from the upper end surface of the main body 311 and installed at a distance from each other. The two support arms 314 may be located on two opposing sides in the length direction of the main body 311, respectively, and can be used to engage with the heat generating base 52. In addition, the upper end surface of the main body 311 and the inner wall surface of the cylindrical side wall 312 define a liquid storage space 3120. The liquid storage space 3120 may accumulate a certain amount of condensed liquid, further reducing liquid leakage.

[0041] Furthermore, the base 31 further includes an intake boss 313 extending upward from the upper end surface of the main body 311. The intake boss 313 is installed in the cylindrical side wall 312, and the outer wall surfaces on both sides in the width direction can be integrally joined to the inner wall surfaces on both sides in the width direction of the cylindrical side wall 312. In addition, in order to allow outside air to enter the atomization chamber 420, the ceiling surface of the intake boss 313 is recessed downward to form a plurality of intake small holes 3130. The plurality of intake small holes 3130 may be distributed in an array. This ensures a sufficient amount of intake air, and the surface tension films formed on the plurality of intake small holes 3130 can further reduce liquid leakage. In addition, by forming the intake hole 3130 in the intake boss 313, the upper end face of the intake hole 3130 becomes higher than the bottom face of the liquid storage space 3120, thereby further reducing the risk of liquid leakage from the intake hole 313.

[0042] Furthermore, the plurality of intake small holes 3130 may include some first intake small holes 3131 and some second intake small holes 3132 surrounding the outside of the some first intake small holes 3131. The some first intake small holes 3131 and the some second intake small holes 3132 may be distributed at equal intervals in an array so as to form a ring (for example, a circular ring, an elliptical ring, a square ring, a polygonal ring, etc.). The number of the first intake small holes 3131 may be less than the number of the second intake small holes 3132. In some embodiments, the number of the first intake small holes 3131 may be 3 to 6, and the number of the second intake small holes 3132 may be 6 to 15. In this embodiment, there are four first intake small holes 3131. The four first intake small holes 3131 are distributed uniformly and symmetrically along the center of the intake boss 313. In addition, there are ten second intake small holes 3132. The ten second intake small holes 3132 are distributed evenly and symmetrically along the center of the intake boss 313.

[0043] The first and second intake holes 3131 and 3132 have different intake cross-sectional areas. The unequal cross-sectional area of ​​the multiple intake holes 3130 can reduce aerodynamic noise. In addition, in this embodiment, the intake cross-sectional area of ​​the first intake hole 3131 is smaller than that of the second intake hole 3132. The first intake holes 3131 and the second intake holes 3132 are arranged in an annular array. That is, in this embodiment, the structure of the intake holes 3130 is a "large hole on the periphery and a small hole in the center". The intake cross-sectional area of ​​the first intake holes 3131 located on the inner circumference is small, so that the leakage of condensate can be effectively reduced. In addition, the cross-sectional area of ​​some of the second intake holes 3132 located on the periphery is large, so that it is possible to ensure a sufficient intake area and appropriate intake resistance by balancing the suction resistance and noise.

[0044] The lower end surface of the main body 311 may be further recessed upward to form an intake hole 3110. The intake hole 3110 extends in the vertical direction. The upper end of the intake hole 3110 communicates with the lower ends of the multiple intake small holes 3130 to form an intake path 315 that allows outside air to enter the atomization chamber 420. Furthermore, the intake cross-sectional area of ​​the intake hole 3110 is larger than the total intake cross-sectional area of ​​the multiple intake small holes 3130.

[0045] The main body 311 further includes an electrode through hole 3111 for inserting the electrode rod 33. Usually, two electrode rods 33 are provided, and the two electrode rods 33 are electrically connected to the two poles of the heating element 42. The upper end face of the electrode rod 33 contacts the heating element 42 and is electrically connected. In addition, the electrode rod 33 also plays a role of supporting the atomization core 40. Correspondingly, the main body 311 includes two electrode through holes 3111. The two electrode rods 33 are inserted into the two electrode through holes 3111 in the vertical direction. In this embodiment, the two electrode through holes 3111 are located in the cylindrical side wall 312 and may be located on both sides of the intake boss 313 in the length direction. Furthermore, in order to reduce the risk of liquid leakage from the electrode through holes 3111, the upper end face of each electrode through hole 3111 may be higher than the bottom surface of the liquid storage space 3120.

[0046] In some embodiments, the atomizer 100 may further include a fixed cover 60. The fixed cover 60 is installed on the outside of the base 31 and is installed on the lower end of the housing 11 to fix the base 31. The fixed cover 60 can be hook-connected to the housing 11, thereby realizing the fixing of the fixed cover 60 and the housing 11. The fixed cover 60 may be made of a metal material. The metal material has a small thermal expansion and contraction deformation caused by temperature changes, so that the fixing between the components of the atomizer 100 is more stable and reliable, and the sealing is better. In addition, the fixed cover 60 made of a metal material may also be used for magnetic adsorption connection with the power supply 200. As can be understood, in other embodiments, the fixed cover 60 may not be installed, and the base 31 and the housing 11 may be fixed to each other by a hook connection, a screw connection, a press-fit connection, etc.

[0047] 3 to 6 and 9, the base module 30 further includes a sealing member 32 that covers the outside of the base 31. The sealing member 32 is hermetically disposed between the inner wall surface of the housing 11 and the outer wall surface of the base 31. The sealing member 32 can be integrally molded from an elastic material such as silicone. The sealing member 32 can include a main body portion 321, two fitting portions 322 that extend upward from two opposing sides of the main body portion 321, and a boss portion 323 that is disposed between the other two opposing sides of the main body portion 321. The main body portion 321 is annular and is hermetically disposed between the outer wall surface of the cylindrical side wall 312 and the inner wall surface of the housing 11. The outer peripheral surface of the main body portion 321 can be tightly fitted into the inner peripheral surface of the bottom end of the housing 11, thereby further improving the sealing performance.

[0048] The two fitting parts 322 are formed by extending upward from the outer edges of both sides of the main body part 321 in the longitudinal direction (length direction). The two fitting parts 322 are respectively provided on the exterior of both sides of the heat generating base 52, and can regulate the longitudinal position of the sealing member 32. This prevents the sealing member 32 from being distorted in the longitudinal direction when attached. The two fitting parts 322 occupy only the space along the longitudinal direction in the housing 11, and do not occupy the space in the lateral direction in the housing 11. Therefore, this structure is advantageous in realizing a lightweight and thin design of the atomizer 100.

[0049] The outer wall surfaces on both sides of the boss portion 323 are integrally joined to the inner wall surfaces on both sides in the short side direction (width direction) of the main body portion 321. The boss portion 323 is fitted into the bottom portion of the heat generating base 52, and can regulate the position of the sealing member 32 in the short side direction. This prevents the sealing member 32 from being distorted in the short side direction when attached.

[0050] At least one intake through hole 3230 is formed in the boss portion 323 along the vertical direction, which is connected to the plurality of intake small holes 3130 and the atomization chamber 420, respectively. In this embodiment, there is one intake through hole 3230. Moreover, the intake through hole 3230, the boss portion 323, and the main body portion 321 are arranged coaxially. As can be understood, in other embodiments, the number of intake through holes 3230 is not limited to one, and they may not be arranged coaxially with the boss portion 323 and / or the main body portion 321. The boss portion 323 is located above the plurality of intake small holes 3130. When liquid splash occurs on the heat generating surface 412 of the liquid absorber 41, the boss portion 323 can block some of the splashed droplets from splashing directly on the surface of the intake small hole 3130, thereby reducing liquid leakage. In addition, when inhalation is stopped, the vapor flows back due to the action of negative pressure. However, most of the backflowing vapor does not come into direct contact with the intake holes 3130 due to the action of the boss portion 323. This reduces the formation of condensation at the intake holes 3130, thereby reducing the risk of leakage.

[0051] The intake through hole 3230 may include an intake section 3231 communicating with a plurality of intake holes 3130 and an exhaust section 3232 communicating with the atomization chamber 420. In this embodiment, the intake through hole 3230 has a contracted shape. That is, the cross-sectional area of ​​the intake section 3231 is larger than the cross-sectional area of ​​the exhaust section 3232. The intake through hole 3230 having a contracted shape can focus the airflow during intake. As a result, the flow rate increases, and the aerosol in the atomization chamber 420 is rapidly discharged along with the airflow. When inhalation is stopped, the vapor flows back due to the action of negative pressure. However, the flow rate of the vapor decreases when it moves from the exhaust section 3232 to the intake section 3231, so the backflow of the vapor can be reduced. In addition, the cross-sectional area of ​​the exhaust section 3232 located at the top is small, and condensed liquid is less likely to leak, so liquid leakage can be reduced. Furthermore, the cross-sectional area of ​​the exhaust port portion at the upper end of exhaust section 3232 (the end remote from intake section 3231 ) may be made smaller than the cross-sectional area of ​​intake boss 313 .

[0052] In order to further reduce the leakage of liquid, the end face of the upper end of the exhaust section 3232 (the end face of one end facing the atomization chamber 420) may be made higher than the end face of the upper end of the boss portion 323 around it. Furthermore, the intake section 3231 and the exhaust section 3232 may be connected to each other so as to have a smooth transition by a curved surface. This can reduce the resistance of the airflow at the connection point between the intake section 3231 and the exhaust section 3232, and prevent the generation of vortexes at the connection point, thereby effectively reducing airflow noise.

[0053] The cross-sectional shapes of the intake section 3231 and the exhaust section 3232 may be the same or different. In this embodiment, the cross-sectional shape of the intake section 3231 is circular. The hole diameter of the intake section 3231 gradually decreases from bottom to top (from one end away from the exhaust section 3232 to one end close to the exhaust section 3232). The exhaust section 3232 has a straight through hole with a track-shaped cross-sectional shape. That is, the length of the major axis and the length of the minor axis of the exhaust section 3232 are both constant in the vertical direction. The intake section 3231 and the exhaust section 3232 are connected to each other so as to transition smoothly via the connection section 3233. The connection section 3233 has a first end communicating with the intake section 3231 and a second end communicating with the exhaust section 3232. The cross-sectional shape and size of the first end matches the cross-sectional shape and size of the upper end of the intake section 3231. The cross-sectional shape and size of the second end matches the cross-sectional shape and size of the lower end of the exhaust section 3232. The cross-sectional shape of the connecting section 3233 gradually changes from a circular shape at the first end to a track shape at the second end. As can be appreciated, in other embodiments, the cross-sectional shapes of the intake section 3231 and the exhaust section 3232 may be other shapes, such as circular, elliptical, rectangular, etc.

[0054] The boss portion 323 further has two electrode holes 3236 for respectively inserting the two electrode rods 33. The two electrode holes 3236 can be located on both sides of the intake through hole 3230 in the length direction. The sealing member 32 further has two evacuation holes 3210 corresponding to the two support arms 314. The two support arms 314 can be inserted into the two evacuation holes 3210 and engaged with the heat generating base 52. Specifically, the extension length of the boss portion 323 in the length direction is smaller than the extension length of the main body portion 321 in the length direction. The two evacuation holes 3210 are formed between the outer wall surfaces on both sides of the boss portion 323 in the length direction and the inner wall surfaces on both sides of the main body portion 321 in the length direction.

[0055] Furthermore, the ceiling surface of the boss portion 323 is recessed downward and / or the bottom surface of the boss portion 323 is recessed upward to form several flow guide grooves 3234. The several flow guide grooves 3234 communicate the intake through hole 3230 and the two electrode holes 3236 with the evacuation hole 3210. The flow guide grooves 3234 have a fine groove structure and can have a strong capillary force with respect to the liquid substrate. Therefore, under the action of the capillary force, the leaked liquid at the intake through hole 3230 and the two electrode holes 3236 is adsorbed and the leaked liquid is guided to the evacuation hole 3210, so that the leaked liquid is dropped into the liquid storage space 3120 via the evacuation hole 3210, thereby further reducing liquid leakage.

[0056] 3-6 and 10-11, the heating base module 50 includes a heating base 52. The heating base 52 is engaged and connected to the base 31 to fix the atomizing core 40. In this embodiment, the heating base 52 and the base 31 are both made of plastic material, and the heating base 52 and the base 31 are hung on each other.

[0057] The heat generating base 52 is formed with at least one liquid supply hole 520 that communicates the liquid absorber 41 with the liquid storage chamber 110. The liquid substrate in the liquid storage chamber 110 can be supplied to the liquid absorbing surface 411 of the liquid absorber 41 through the at least one liquid supply hole 520. The atomizing core 40 can be accommodated in the heat generating base 52. In addition, at least one opening 527 that exposes at least a part of the side surface of the liquid absorber 41 is further formed in the side wall of the heat generating base 52. In this embodiment, there are two liquid supply holes 520. The two liquid supply holes 520 are located on both sides in the length direction of the heat generating base 52, respectively. In addition, there are two openings 527. The two openings 527 are located on both sides in the width direction of the heat generating base 52, respectively.

[0058] Furthermore, at least one liquid storage ventilation structure 521 is further formed on the outer surface of the heat generating base 52. The at least one liquid storage ventilation structure 521 is in communication with the liquid storage chamber 110 and can be used to balance the air pressure in the liquid storage chamber 110. If the air pressure in the liquid storage chamber 110 drops too low, outside air can enter the liquid storage chamber 110 through the liquid storage ventilation structure 521. This prevents the liquid supply from being stagnated due to the air pressure in the liquid storage chamber 110 dropping too low, thereby preventing the occurrence of dry burning.

[0059] Specifically, this embodiment has two liquid storage and ventilation structures 521. The two liquid storage and ventilation structures 521 are formed on both sides in the length direction of the heat generating base 52. Moreover, the two liquid storage and ventilation structures 521 can be installed to be rotationally symmetrical with respect to the central axis of the heat generating base 52.

[0060] Each liquid storage and ventilation structure 521 includes a ventilation path 522 formed at one end of the heat generating base 52 close to the liquid storage chamber 110, a liquid storage groove 524 and a tension breaking groove 526 formed at one end of the heat generating base 52 away from the liquid storage chamber 110, a liquid suction groove opening 523 that connects the ventilation path 522 and the liquid storage groove 524, and a ventilation inlet 525 that connects the ventilation path 522 and the tension breaking groove 526. One end of the ventilation path 522 connects to the liquid storage chamber 110, and the other end connects to the liquid storage groove 524 and the tension breaking groove 526 via the liquid suction groove opening 523 and the ventilation inlet 525, respectively. The ventilation inlet 525 is used to take in outside air into the ventilation path 522. The liquid suction groove 523 is used to suck the liquid substrate (for example, condensed liquid or leaked liquid in the ventilation path 522, condensed liquid or leaked liquid formed on the atomizing core 40, or condensed liquid or leaked liquid formed in other parts) into the liquid storage groove 524 by capillary force. This separates ventilation and liquid storage, thereby preventing the ventilation path 522 from being blocked by the liquid substrate. In addition, the width of the ventilation inlet 525 is larger than the width of the liquid suction groove 523 so that a larger capillary force is formed in the liquid suction groove 523. This allows the liquid substrate in the ventilation path 522 to be sucked into the liquid storage groove 524 via the liquid suction groove 523, achieving gas-liquid separation.

[0061] Specifically, the ventilation path 522 includes several ventilation grooves 5221 extending in the circumferential direction of the heat generating base 52, an air guide groove 5222 extending in the vertical direction and communicating with the several ventilation grooves 5221, and a return air groove 5223 extending in the horizontal direction and communicating with the air guide groove 5222. The several ventilation grooves 5221 can be formed by recessing the outer circumferential surface of one end of the heat generating base 52 close to the liquid storage chamber 110 inward. The several ventilation grooves 5221 can be installed in parallel at intervals. The air guide groove 5222 is formed by recessing the side surface of the heat generating base 52 inward. One end of the air guide groove 5222 is connected to one ventilation groove 5221 located at the top, and the other end extends upward to the ceiling surface of the heat generating base 52. The return air groove 5223 is formed by recessing the ceiling surface of the heat generating base 52 downward. One end of the return air groove 5223 communicates with the air introduction groove 5222, and the other end communicates with the liquid supply hole 520 on the corresponding side.

[0062] The ventilation groove 5221, the air guide groove 5222, and the return air groove 5223 all have a fine groove structure, which does not impede the flow of gas but may impede the flow of liquid substrate. This ensures that the ventilation path 522 has the functions of ventilation and liquid blocking, and reduces the risk of the liquid substrate in the liquid storage chamber 110 leaking through the ventilation path 522. In some embodiments, the width of the ventilation groove 5221, the air guide groove 5222, and the return air groove 5223 may be 0.3 to 0.6 mm, and the depth may be 0.3 to 0.6 mm.

[0063] The liquid storage groove 524 includes a plurality of sub liquid storage grooves 5241 extending in the circumferential direction of the heat generating base 52. The plurality of sub liquid storage grooves 5241 can be formed by recessing inward the outer peripheral surface of one end of the heat generating base 52 that is away from the liquid storage chamber 110. The plurality of sub liquid storage grooves 5241 can be arranged in parallel at intervals. Furthermore, both ends in the circumferential direction of each sub liquid storage groove 5241 extend to two openings 527, respectively, and can communicate with the two openings 527, respectively. This allows communication between the sub liquid storage groove 5241 and the liquid absorber 41. After the condensed liquid accumulates in the liquid storage groove 524 (or the liquid substrate leaks from the ventilation path 522 into the liquid storage groove 524), the condensed liquid (or the liquid substrate) is sucked into the liquid absorber 41 by the capillary force of the gap between the liquid absorber 41 and the liquid storage groove 524. This reduces the risk of condensation flowing back from ventilation path 522 into reservoir chamber 110 and leaking into power supply device 200.

[0064] The sub liquid storage groove 5241 has a minute narrow groove structure and has a strong capillary force with respect to the liquid substrate, and therefore, by the action of the capillary force, it is possible to adsorb the condensed liquid in the ventilation groove 5221. In some embodiments, the width of the sub liquid storage groove 5241 may be 0.3 to 0.6 mm, and the depth may be 0.3 to 0.6 mm.

[0065] The tension breaking groove 526 has a width wider than the ventilation path 522 and the liquid storage groove 524, and is used to prevent the condensed liquid in the liquid storage groove 524 from flowing back into the liquid storage chamber 110 and affecting the liquid supply by fluctuating the pressure in the liquid storage chamber 110, and to further stabilize the ventilation pressure. The tension breaking groove 526 may be extended in the vertical direction, and the lower end may be connected to one sub-liquid storage groove 5241 located at the lowermost position, and the upper end may be connected to one sub-liquid storage groove 5241 located at the uppermost position. In this way, the multiple sub-liquid storage grooves 5241 are connected to each other through the tension breaking groove 526. The width of the tension breaking groove 526 may be larger than the width of the ventilation inlet 525. In some embodiments, the width of the tension breaking groove 526 may be 1 to 3 mm, and the depth may be 0.5 to 1.2 mm.

[0066] The liquid suction groove 523 and the ventilation inlet 525 can communicate with both sides in the circumferential direction of one end of the ventilation path 522 that is away from the liquid storage chamber 110. In some embodiments, the ventilation inlet 525 can communicate with one of the several ventilation grooves 5221, and the liquid suction groove 523 can communicate with another of the several ventilation grooves 5221. Specifically, in this embodiment, the several ventilation grooves 5221 may include one first ventilation groove 5224 located at the bottom and a second ventilation groove 5225 located above the first ventilation groove 5224 and adjacent to the first ventilation groove 5224. The liquid suction groove 523 has an upper end that can communicate with one side in the circumferential direction of the first ventilation groove 5224, and a lower end that can extend downward to one sub-liquid storage groove 5241 located at the top in the vertical direction and communicate with the sub-liquid storage groove 5241. The upper end of the ventilation inlet 525 can communicate with the other circumferential side of the second ventilation groove 5225, and the lower end extends downward in the vertical direction until it communicates with the upper end of the tension break groove 526. As shown by the arrow in FIG. 11, air enters the second ventilation groove 5225 from the ventilation inlet 525, and then flows through several ventilation grooves 5221 located above the second ventilation groove 5225 to the air introduction groove 5222, and finally enters the liquid storage chamber 110 through the return air groove 5223, thereby balancing the air pressure in the liquid storage chamber 110. In some embodiments, the width of the liquid suction groove opening 523 may be 0.3 to 0.6 mm, and the depth may be 0.3 to 0.6 mm. The width of the ventilation inlet 525 may be 0.6 to 1.5 mm, and the depth may be 0.3 to 0.6 mm.

[0067] As can be appreciated, in other embodiments, the ventilation inlet 525 and the liquid suction groove opening 523 may communicate with the same ventilation groove 5221. Also, the ventilation inlet 525 and the liquid suction groove opening 523 may communicate with both circumferential ends of one ventilation groove 5221 (e.g., the first ventilation groove 5224), respectively.

[0068] During the inhalation process, the liquid substrate is sucked from the liquid storage chamber 110 into the ventilation path 522, but the liquid substrate must resist surface tension when it is sucked up to the ventilation inlet 525. At this time, the ventilation inlet 525 plays a role in preventing the liquid substrate from being sucked out of the ventilation path 522, and one first ventilation groove 5224 located at the bottom absorbs a part of the liquid substrate. FIG. 12 shows a gas-liquid two-phase distribution diagram in the liquid storage ventilation structure 521 at the time when inhalation is stopped. The test conditions were 3 s of inhalation and 27 s of stop, and the volume of the liquid phase in the liquid storage ventilation structure 521 at the time when inhalation was stopped after 3 s was tested. As is clear from the gas-liquid two-phase distribution diagram, at the time when inhalation was stopped, the liquid phase (mainly that leaked from the liquid storage chamber 110 during the inhalation process) was mainly distributed in the ventilation path 522, and the liquid phase distribution in the liquid storage groove 524 was slight or almost not observed. This effectively prevented the liquid substrate from leaking out of the ventilation path 522.

[0069] 4 to 6, the heat generating base module 50 further includes a sealing cover 53 that covers the upper part of the heat generating base 52, and a gasket 51 that is housed in the heat generating base 52 and is disposed between the heat generating base 52 and the liquid absorber 41. The sealing cover 53 and the gasket 51 can both be manufactured from an elastic material such as silicone. The gasket 51 can be in the form of an annular sheet. The gasket 51 tightly contacts the heat generating base 52 and the liquid absorber 41 in a sealed manner, and can fulfill the role of ensuring cushioning and sealing and preventing liquid leakage. The sealing cover 53 is disposed on the upper part of the heat generating base 52, and is used to seal the lower end of the liquid storage chamber 110 and to seal the atomization chamber 420 and the liquid storage chamber 110. The outer peripheral surface of the sealing cover 53 can be tightly fitted to the inner peripheral surface of the housing 11, thereby further improving the sealing performance. The ceiling surface of the sealing cover 53 may be recessed downward to form an air vent 530. The lower end of the exhaust pipe 12 can be fitted into the ventilation hole 530. The outer peripheral surface of the lower end of the exhaust pipe 12 sealingly engages with the hole wall of the ventilation hole 530, so that the exhaust path 120 and the liquid storage chamber 110 are hermetically isolated.

[0070] 14 shows a heat generating module in some embodiments of the prior art. The heat generating module includes an atomizing top base 115, an atomizing core 12, and an atomizing bottom base 116. The outer surface of the atomizing top base 115 is provided with a ventilation groove 112. The ventilation groove 112 includes a first sub-ventilation groove 1121 and a second sub-ventilation groove 1122. The outer surface of the atomizing bottom base 116 is provided with a discharge groove 114 and a liquid storage groove 113. One end of the discharge groove 114 is connected to the ventilation groove 112, and the other end of the discharge groove 114 is connected to the liquid storage groove 113. The liquid storage groove 113 includes a plurality of sub-liquid storage grooves 1131.

[0071] 13 and 15 show graphs of the ventilation pressure of the heat generating module shown in FIG. 3 and FIG. 14, respectively. The horizontal axis in the figure is the intake time, and the vertical axis is the pressure of the liquid storage chamber. In the test experiment, the test conditions were intake 3 s, stop 27 s, and power 6 W. The heat generating module shown in FIG. 3 had four ventilation grooves 5221, each of which had a width of 0.35 mm and a depth of 0.4 mm. The width of the ventilation inlet 525 was 1 mm and a depth of 0.4 mm, and the width of the tension breaking groove 526 was 2 mm and a depth of 0.8 mm. The heat generating module shown in FIG. 14 had four second sub-ventilation grooves 1122, each of which had a width of 0.35 mm and a depth of 0.4 mm. The width of the inlet at one end of the exhaust groove 114 that communicates with the second sub-ventilation groove 1122 was 0.6 mm and a depth of 0.4 mm. As is clear from FIG. 13 and FIG. 15, the heat generating module shown in FIG. 3 had a smaller fluctuation range of ventilation pressure, and most of the modules were ventilated once per one port (i.e., the ventilation time was short and the ventilation speed was fast). On the other hand, the heat generating module shown in FIG. 14 had a larger fluctuation range of ventilation pressure, and most of the modules were ventilated once per two ports (i.e., the ventilation time was long and the ventilation speed was slow). In comparison, the heat generating module shown in FIG. 3 had higher ventilation stability. In addition, ventilation did not go through one first ventilation groove 5224 located at the bottom, and had a short ventilation path, so it had a small ventilation pressure and a fast ventilation speed. This made it possible to effectively avoid situations such as the generation of a burning smell and a decrease in the amount of vapor due to poor ventilation.

[0072] 16 shows the base 31 in a first alternative solution of the present invention. The main differences between this solution and the above first embodiment are as follows: In this embodiment, the cross-sectional area of ​​the first small air intake hole 3131 is larger than that of the second small air intake hole 3132. That is, the structural form of the small air intake hole 3130 is a "small hole on the periphery and a large hole in the center" type.

[0073] 18 shows a base 31 in some embodiments of the prior art. In the base 31, the intake cross-sectional area of ​​the first intake small hole 3131 is equal to the intake cross-sectional area of ​​the second intake small hole 3132.

[0074] 8, 17, and 19 show the noise simulation distribution of the bases shown in FIG. 7, 16, and 18, respectively. In the test experiment, the bases shown in FIG. 7, 16, and 18 all included four first intake small holes 3131 and ten second intake small holes 3132. In FIG. 7, the diameter of the first intake small holes 3131 was 3.5 mm, the diameter of the second intake small holes 3132 was 4.5 mm, and the maximum aerodynamic noise was 61.37 dB. In FIG. 16, the diameter of the first intake small holes 3131 was 4.5 mm, the diameter of the second intake small holes 3132 was 3.5 mm, and the maximum aerodynamic noise was 66.52 dB. In FIG. 18, the hole diameters of the first intake small hole 3131 and the second intake small hole 3132 are both 3.5 mm, and the maximum aerodynamic noise was 70.83 dB. As is clear from FIG. 8, FIG. 17, and FIG. 19, the intake small hole structures in which large and small holes are alternately arranged as shown in FIG. 7 and FIG. 16 were able to clearly reduce the aerodynamic noise during intake. On the other hand, the intake small hole structure shown in FIG. 18 had a large aerodynamic noise. Also, in the case of the intake small hole structure having the "large holes on the periphery and small holes in the center" type shown in FIG. 7, the aerodynamic noise during intake was minimized, and the uniform flow guidance effect on the airflow was the best. Therefore, in design, the intake cross-sectional area of ​​the first intake small hole 3131 should be smaller than the intake cross-sectional area of ​​the second intake small hole 3132. By selecting an appropriate number and size (eg, hole diameter or intake cross-sectional area) of the first intake small holes 3131 and the second intake small holes 3132, the aerodynamic noise of the atomizer 100 during operation is less than 61.4 dB.

[0075] 20-21 show the base 31 in the second alternative design of the present invention. The main differences between this design and the first embodiment are as follows. In this embodiment, the upper surface 3133 of the intake boss 313 has a protruding shape. Specifically, the upper surface 3133 may have a spherical surface. A plurality of intake holes 3130 on the intake boss 313 extend downward from the upper surface 3133. In other embodiments, the upper surface 3133 may have other shapes, such as a truncated cone. The second intake holes 3132 located on the outer periphery may be disposed close to the outer edge of the upper surface 3133.

[0076] As shown in FIG. 22, by designing the intake boss 313 to have a protruding shape with small holes on the inside and large holes on the outside, the film boundary 35 of the condensate formed at the second intake small hole 3132 on the periphery has a substantially spherical shape and can communicate with the condensate accumulated in the liquid storage space 3120. As a result, the condensate tends to flow to the outside of the intake small hole 3130. The flow direction of the condensate is as shown by the arrow in FIG. 22. When the intake small hole 3130 is covered with condensate, the first intake small hole 3131 in the center has a small hole diameter, so the condensate does not easily flow out. On the other hand, the condensate at the second intake small hole 3132 on the periphery communicates with the condensate accumulated in the base 31 and is easily discharged by the condensate accumulated in the base 31, so that it can be quickly diffused to the liquid storage space 3120 of the base 31. As a result of the above, the intake small hole 3130 is not easily blocked.

[0077] 23 shows a sealing member 32 in a third alternative solution of the present invention. The main differences between this solution and the first embodiment are as follows. In this embodiment, the boss portion 323 is not provided with an electrode hole 3236. In addition, both side surfaces in the length direction of the boss portion 323 are recessed inward to form an evacuation groove 3235 communicating with the evacuation hole 3210. This structure reduces the influence of the shape and size of the intake through hole 3230 when designing it.

[0078] 24 shows a sealing member 32 in a fourth alternative embodiment of the present invention. The main differences between this embodiment and the first embodiment are as follows: In this embodiment, the boss portion 323 does not have an electrode hole 3236. This structure reduces the influence of the shape and size of the intake through hole 3230 when designing it.

[0079] As can be understood, the above technical features can be used in any combination without limitation.

[0080] The above examples merely show preferred embodiments of the present invention, and are described in a relatively specific and detailed manner, but 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 considered to be within the scope of coverage of the claims of the present invention.

Claims

1. The liquid storage device includes a liquid storage case (10) having a liquid storage chamber (110) formed therein, a base (31) installed at one end of the liquid storage case (10), and a sealing member (32) installed within the liquid storage case (10) and covering the base (31), The sealing member (32) is provided with an intake through hole (3230), the intake through hole (3230) including an intake section (3231) facing the base (31) and an exhaust section (3232) spaced apart from the base (31), the cross-sectional area of ​​the intake section (3231) being larger than the cross-sectional area of ​​the exhaust section (3232); An atomizer characterized in that an intake path (315) communicating with the intake section (3231) is formed in the base (31), and a communication hole of the intake path (315) and the intake section (3231) is installed opposite one end of the exhaust section (3232) away from the intake section (3231).

2. 2. The atomizer according to claim 1, characterized in that the connection between the intake section (3231) and the exhaust section (3232) is such that there is a gradual transition.

3. 2. The atomizer of claim 1, wherein the cross-sectional shape of the intake section (3231) is the same as or different from the cross-sectional shape of the exhaust section (3232).

4. The atomizer described in claim 1, characterized in that the sealing member (32) includes a main body portion (321) and a boss portion (323), the main body portion (321) is annular and is arranged between the base (31) and the liquid storage case (10) in a sealed manner, two opposing sides of the boss portion (323) are respectively connected to two opposing sides of the main body portion (321), and the intake through hole (3230) is formed in the boss portion (323).

5. The atomizer according to claim 4, characterized in that the upper end face of the intake through hole (3230) is higher than the upper end face of the boss portion (323).

6. The atomizer according to claim 4, characterized in that the two opposing sides of the boss portion (323) are connected to both sides of the short side of the body portion (321), respectively.

7. An atomizer as described in claim 4, characterized in that an escape hole (3210) is formed between each of two opposing sides that intersect with the two opposing sides of the boss portion (323) connected to the main body portion (321) and two opposing sides that intersect with the two opposing sides of the main body portion (321) connected to the boss portion (323).

8. The atomizer according to claim 7, characterized in that the boss portion (323) further has a guide groove (3234) that connects the intake through hole (3230) and the evacuation hole (3210).

9. The atomizer of claim 4, characterized in that the sealing member (32) further includes two fitting portions (322), each of which extends in a direction away from the base (31) from two opposite sides intersecting with two opposite sides of the main body portion (321) connected to the boss portion (323).

10. The atomizer according to claim 9, wherein the two fitting parts (322) are respectively installed in the longitudinal direction of the body part (321).

11. The atomizer according to claim 9, wherein the two fitting portions (322), the body portion (321) and the boss portion (323) are integrally molded.

12. The atomizer according to any one of claims 1 to 11, characterized in that the base (31) is formed with an intake passage (315) communicating with the intake section (3231).

13. The atomizer of claim 12, characterized in that the base (31) includes an intake boss (313), and the intake passage (315) includes a plurality of intake small holes (3130) formed in the intake boss (313).

14. The atomizer according to claim 13, characterized in that the cross-sectional area of ​​the exhaust port at one end of the exhaust section (3232) remote from the intake section (3231) is smaller than the cross-sectional area of ​​the intake boss (313).

15. The atomizer described in claim 13, characterized in that the multiple intake slits (3130) include several first intake slits (3131) and several second intake slits (3132) surrounding the outside of the several first intake slits (3131), and the intake cross-sectional areas of the first intake slits (3131) and the second intake slits (3132) are different.

16. The atomizer according to claim 13, characterized in that the surface of the intake boss (313) facing the liquid storage chamber (110) has a convex shape.

17. The atomizer according to any one of claims 1 to 11, further comprising a liquid absorber (41) installed in the liquid storage case (10), and an atomization chamber (420) communicating with the exhaust section (3232) is formed between the liquid absorber (41) and the sealing member (32).

18. The atomizer of claim 17, further comprising a heat generating base (52) installed in the liquid storage case (10) and engaged and connected to the base (31), and the liquid absorbing material (41) is accommodated between the heat generating base (52) and the base (31).

19. An electronic atomization device comprising: the atomizer according to any one of claims 1 to 11; and a power supply device electrically connected to the atomizer.

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