Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device. The electronic atomization device comprises an atomizer and a power supply device connected with the atomizer in a matched mode. The atomizer comprises a shell, one end of the shell is provided with a liquid injection channel, and a liquid storage cavity is formed in the shell; and the sealing element has elasticity and is arranged between the liquid storage cavity and the liquid injection channel. And the sealing element has a first state for separating the liquid storage cavity from the liquid injection channel and a second state for communicating the liquid storage cavity with the liquid injection channel. And the sealing element is configured to at least partially deform to be converted into the second state when being subjected to external force, and is recovered to the first state when the external force is relieved. During liquid injection, the sealing piece is pressed by the liquid injection needle to deform, the liquid storage cavity is opened, and liquid injection is achieved; after liquid injection is completed, the pressure borne by the sealing piece is relieved, the sealing piece rebounds automatically, sealing of the liquid storage cavity is achieved, and the whole liquid injection process is easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, and more particularly to an atomizer and an electronic atomization device. Background Art

[0002] An electronic atomization device generally includes an atomizer and a power supply device, wherein the power supply device is used to supply power to the atomizer, and the atomizer is used to store an aerosol-generating medium and atomize the aerosol-generating medium after being powered on.

[0003] When the aerosol-generating medium in the liquid storage chamber of the nebulizer is used up, the aerosol-generating medium can be injected into the liquid storage chamber for continued use. When injecting liquid into the existing nebulizer, it is usually necessary to remove the suction nozzle, and then inject liquid through the liquid injection port. After the injection is completed, the suction nozzle is installed. This injection operation is relatively cumbersome, and the nozzle disassembly and assembly process is completed by the back-end customer, which poses uncontrollable risks for the nebulizer manufacturer. In addition, after the injection is completed, the suction nozzle needs to be press-fitted within a short period of time, otherwise the storage time is proportional to the risk of leakage. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an atomizer with convenient liquid injection operation and an electronic atomization device having the atomizer in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve the technical problem is to construct an atomizer, comprising:

[0006] a housing, one end of which is provided with a liquid injection channel, and the housing is provided with a liquid storage cavity; and

[0007] A sealing member, which is elastic and disposed between the liquid storage chamber and the liquid injection channel,

[0008] The sealing member has a first state in which the liquid storage chamber and the liquid injection channel are separated, and a second state in which the liquid storage chamber and the liquid injection channel are connected.

[0009] The sealing member is configured to at least partially deform when subjected to an external force and transform into the second state, and to return to the first state when the external force is released.

[0010] In some embodiments, the injection channel is configured such that when the injection needle is inserted into the injection channel, an exhaust channel is formed between the inner wall surface of the injection channel and the outer wall surface of the injection needle to connect the liquid storage cavity with the outside.

[0011] In some embodiments, the sealing member includes a deformable portion, which is umbrella-shaped and gradually expands toward the liquid storage cavity, and the expanded end of the deformable portion is sealed with the inner wall surface of the shell.

[0012] In some embodiments, the shell includes a liquid storage tube, a ventilation tube arranged in the liquid storage tube, and a suction nozzle and an atomizer seat respectively arranged at both ends of the liquid storage tube. The liquid storage cavity is defined between the inner wall surface of the liquid storage tube and the outer wall surface of the ventilation tube, and the sealing member is sleeved on the ventilation tube.

[0013] In some embodiments, the injection channel is formed on the suction nozzle or the atomizer seat.

[0014] In some embodiments, the sealing member includes a sleeve portion connected to the constricted end of the deformation portion, and the sleeve portion is tubular and is sealingly sleeved on the ventilation pipe.

[0015] In some embodiments, a first limiting end surface and a second limiting end surface are formed in the housing and are spaced apart in the axial direction.

[0016] The first limiting end surface is in contact with or has clearance fit with an axial end surface of the sleeve portion.

[0017] The second limiting end surface is in contact with or clearance fit with the other axial end surface of the sleeve portion.

[0018] In some embodiments, the first limiting end surface is formed by a protrusion on the outer side of the vent tube, and the second limiting end surface is formed on the suction nozzle or the atomizer seat.

[0019] In some embodiments, the seal comprises at least one reinforcing rib disposed on an inner side surface or an outer side surface of the deformation portion.

[0020] The utility model also provides an electronic atomization device, comprising the above-mentioned atomizer and a power supply device matched with the atomizer.

[0021] The implementation of the present invention has at least the following beneficial effects: by setting a sealing member, when injecting liquid, the sealing member is compressed by the injection needle and deformed, opening the liquid storage chamber and realizing liquid injection; after the injection is completed, the pressure on the sealing member is released, and the sealing member automatically rebounds to realize sealing of the liquid storage chamber, and the operation of the entire injection process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the electronic atomization device in the first embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the electronic atomization device shown;

[0025] Figure 3 yes Figure 2 Schematic diagram of the longitudinal cross-section structure of the middle atomizer;

[0026] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the atomizer shown;

[0027] Figure 5 yes Figure 3 The longitudinal cross-sectional structure diagram of the atomizer shown is during liquid injection;

[0028] Figure 6 yes Figure 5 A schematic diagram of the three-dimensional structure of the middle sealing member in the second state;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the sealing member in the second embodiment of the present utility model;

[0030] Figure 8 yes Figure 7 A schematic diagram of the longitudinal cross-sectional structure of the seal shown;

[0031] Figure 9 This is a schematic diagram of the three-dimensional structure of the sealing member in the third embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the atomizer in the fourth embodiment of the present utility model;

[0033] Figure 11 yes Figure 10 A schematic diagram of the longitudinal cross-sectional structure of the atomizer shown;

[0034] Figure 12 yes Figure 11 Schematic diagram of the three-dimensional structure of the middle atomizer seat;

[0035] Figure 13 yes Figure 11 The diagram shows the longitudinal cross-sectional structure of the atomizer during liquid injection. DETAILED DESCRIPTION

[0036] In order to provide a clearer understanding of the technical features, objectives, and effects of the present invention, a specific embodiment of the present invention will now be described in detail with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings or the orientation or position relationship in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0039] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Figure 1 、 Figure 2 An electronic atomization device 1 in some embodiments of the present invention is shown, and the electronic atomization device 1 includes an atomizer 100 and a power supply device 200 matched with the atomizer 100. Among them, the power supply device 200 generally includes electronic components such as a battery and a circuit board. A relevant control circuit is provided on the circuit board, and the control circuit is electrically connected to the battery and the atomizer 100, respectively, for controlling the power on and off of the atomizer 100 by the battery. The atomizer 100 is mainly used to accommodate an aerosol-generating medium and heat and atomize the aerosol-generating medium after power is applied. The aerosol-generating medium includes but is not limited to materials used for medical treatment, health preservation, health, beauty and other purposes.

[0042] In some embodiments, the atomizer 100 and the power supply unit 200 can be mechanically and electrically connected together along the axial direction. Furthermore, the atomizer 100 and the power supply unit 200 can be connected together through a detachable connection such as a magnetic connection, a threaded connection, or a snap connection. Of course, in other embodiments, the atomizer 100 and the power supply unit 200 can also be connected together through a non-detachable connection.

[0043] like Figures 2 to 4 As shown, the atomizer 100 may include a housing 10 and an atomizer core 20 disposed within the housing 10. An inhalation passage 110 is defined at one end of the housing 10 (shown as the upper end). Within the housing 10, a liquid reservoir 120 for accommodating an aerosol-generating medium is defined. The atomizer core 20 is in fluid communication with the liquid reservoir 120 and in gas communication with the inhalation passage 110. When a user draws in air through the inhalation passage 110, the atomizer core 20 atomizes the aerosol-generating medium in the liquid reservoir 120 to form an aerosol. This aerosol is then output through the inhalation passage 110 for inhalation or absorption by the user.

[0044] In some embodiments, at least one injection channel 101 may be provided at one end of the housing 10. This at least one injection channel 101 is connected to the liquid storage chamber 120 and is used to inject liquid into the liquid storage chamber 120. Specifically, the injection channel 101 may be provided at the mouthpiece end or the atomizer end of the housing 10. The mouthpiece end refers to the end of the housing 10 for user inhalation, that is, the end of the housing 10 provided with the air inhalation channel 110; the atomizer end refers to the end opposite the mouthpiece end.

[0045] The atomizer 100 also includes a seal 40 disposed between the liquid storage chamber 120 and the liquid injection channel 101. The seal 40 is elastic and can deform under the action of pressure and return to an undeformed state when the pressure is released. Specifically, the seal 40 has a first state in which the liquid storage chamber 120 and the liquid injection channel 101 are separated, and a second state in which the liquid storage chamber 120 and the liquid injection channel 101 are connected. When the seal 40 is subjected to an external force, the seal 40 at least partially deforms, thereby transitioning from the first state to the second state. When the external force acting on the seal 40 is released, the seal 40 transitions from the second state to the first state.

[0046] Specifically, in some embodiments, the housing 10 may include a liquid storage tube 12 , a vent tube 18 disposed in the liquid storage tube 12 , and a nozzle 11 and an atomizer seat 13 respectively disposed at two ends of the liquid storage tube 12 .

[0047] The liquid storage tube 12 can be a circular tube with two ends open, but is not limited to a circular tube. For example, the liquid storage tube 12 can also be other shapes such as an elliptical tube, a racetrack tube, a square tube or a polygonal tube.

[0048] The vent tube 18 can be axially disposed within the liquid storage tube 12 and can be coaxial with the liquid storage tube 12, but is not limited to a coaxial arrangement. An air outlet channel 180 is formed within the vent tube 18, and a liquid storage chamber 120 is formed between the outer wall of the vent tube 18 and the inner wall of the liquid storage tube 12. The atomizer core 20 can be disposed within the vent tube 18, and the vent tube 18 is provided with at least one liquid inlet hole 1810 for connecting the atomizer core 20 with the liquid storage chamber 120.

[0049] The atomizer core 20 generally includes a liquid-conducting base 21 and a heating element 22 in contact with the liquid-conducting base 21. The liquid-conducting base 21 is in liquid-conducting communication with the liquid storage chamber 120, and the heating element 22 is electrically connected to the power supply device 200. The liquid-conducting base 21 absorbs the aerosol-generating medium from the liquid storage chamber 120 and transfers the aerosol-generating medium to the heating element 22. After the heating element 22 is powered on and generates heat, the aerosol-generating medium adsorbed by the liquid-conducting base 21 is heated and atomized. The specific structure of the heating element 22 is not limited. For example, it can be a resistive heating film, a metal sheet, or a metal mesh.

[0050] The liquid-conducting substrate 21 can be any structure capable of transmitting or delivering the aerosol-generating medium to the heating element 22. Typically, the liquid-conducting substrate 21 can conduct liquid through capillary action or other forces. Materials for the liquid-conducting substrate 21 include, but are not limited to, ceramic, glass, quartz, or fiber.

[0051] The shape of the liquid-conducting base 21 is not limited; for example, it can be a plate, bowl, column, or cylinder. In this embodiment, the liquid-conducting base 21 is hollow and cylindrical, with an air flow hole 210 formed axially therethrough. The air flow hole 210 is connected to the air outlet channel 180 and can be coaxially disposed with the air outlet channel 180, but is not limited to a coaxial arrangement.

[0052] The heating element 22 can be disposed on the inner wall of the liquid-conducting base 21. Of course, in other embodiments, the heating element 22 can also be disposed at other locations of the liquid-conducting base 21, such as the outer wall and / or upper end surface and / or lower end surface of the liquid-conducting base 21.

[0053] In some embodiments, the atomizer 100 further includes a liquid guide 30 , which is disposed in the vent tube 18 and sleeved on the outside of the atomizer core 20 , and is used to absorb the aerosol generating medium from the liquid storage chamber 120 through the liquid inlet hole 1810 and transfer the medium to the atomizer core 20 .

[0054] The liquid guide member 30 can be any structure capable of transferring or delivering the aerosol-generating medium to the liquid guide base 21. Typically, the liquid guide member 30 can guide the liquid by capillary action or other forces. Materials for the liquid guide member 30 include, but are not limited to, ceramic, glass, quartz, or fiber.

[0055] In some embodiments, the liquid-conducting base 21 is porous ceramic, and the liquid-conducting member 30 is liquid-conducting cotton (including natural cotton and / or artificial cotton). The liquid-conducting member 30 is tightly fitted between the outer wall of the liquid-conducting base 21 and the inner wall of the vent tube 18. This not only secures the liquid-conducting base 21 within the vent tube 18, but also ensures close contact between the liquid-conducting member 30 and the liquid-conducting base 21 for liquid conduction.

[0056] The nozzle 11 is disposed at the upper end of the liquid storage tube 12 and covers the upper end opening of the liquid storage tube 12. An air inhalation channel 110 is formed axially through the nozzle 11, and the air inhalation channel 110 is connected to the air outlet channel 180 to form an aerosol output channel for outputting aerosol.

[0057] In some embodiments, the nozzle 11 may include a nozzle body 112 and an annular protrusion 113 extending downward from the lower end surface of the nozzle body 112. The lower end surface of the nozzle body 112 may abut against the upper end surface of the liquid storage tube 12, and the protrusion 113 may be embedded in the upper end opening of the liquid storage tube 12, thereby achieving installation and fixation between the nozzle 11 and the liquid storage tube 12. Of course, in other embodiments, the nozzle 11 and the liquid storage tube 12 may also be integrally formed.

[0058] The upper end of the vent tube 18 can be embedded in the air intake passage 110, thereby securing it to the suction nozzle 11. A stepped surface 1101 can also be formed in the air intake passage 110, against which the upper end of the vent tube 18 can rest. Of course, in other embodiments, the suction nozzle 11 and the vent tube 18 can also be integrally formed. The lower end of the vent tube 18 can be embedded in the atomizer base 13.

[0059] The thickness of the vent tube 18 remains substantially constant in the axial direction. Of course, in other embodiments, the vent tube 18 may also have a non-uniform thickness.

[0060] In some embodiments, the vent tube 18 may include a lower tube section 181, a middle tube section 182, and an upper tube section 183, arranged axially from bottom to top. The inner diameter and outer diameter of the upper tube section 183 are respectively smaller than the inner diameter and outer diameter of the lower tube section 181. The atomizer core 20 and the liquid guide 30 are both disposed in the lower tube section 181. The tube wall of the lower tube section 181 may be evenly spaced along the axial direction and have multiple liquid inlet holes 1810. The lower end of the lower tube section 181 is embedded in the atomizer seat 13, and the upper end of the upper tube section 183 is embedded in the air inlet channel 110.

[0061] The middle tube section 182 can be a generally tapered tube, with both its inner and outer diameters gradually decreasing axially from bottom to top. The ends of the middle tube section 182 are smoothly connected to the lower tube section 181 and the upper tube section 183, respectively. Of course, in other embodiments, the inner and outer diameters of the middle tube section 182 can also remain constant in the axial direction. Specifically, the inner and outer diameters of the middle tube section 182 can be respectively consistent with the inner and outer diameters of the lower tube section 181 or the upper tube section 183. Alternatively, the inner and outer diameters of the lower tube section 181, the middle tube section 182, and the upper tube section can also decrease in a stepwise manner.

[0062] The outer diameter of the lower tube section 181 is smaller than the inner diameter of the liquid storage tube 12. In some embodiments, the inner wall surface of the lower end of the liquid storage tube 12 extends radially inward to form an annular inner flange 121, which can abut against the atomizer seat 13. An outer flange 1811 protrudes from the outer side of the lower tube section 181, and the bottom of the outer flange 1811 can abut against the upper end surface of the inner flange 121. In this way, the outer flange 1811 and the atomizer seat 13 clamp the inner flange 121, thereby securing the liquid storage tube 12 to the atomizer seat 13.

[0063] In some embodiments, a sealing gasket 17 may be disposed between the inner flange 121 and the outer flange 1811. The sealing gasket 17 may be annular and fits over the lower tube section 181, with its inner wall surface sealingly engaging the outer wall surface of the lower tube section 181. The lower side of the outer flange 1811 is pressed against the inner flange 121 via the sealing gasket 17, thereby reducing the outflow of the aerosol-generating medium from the gap between the liquid storage tube 12 and the lower tube section 181.

[0064] A sealing gasket 16 can be provided between the inner flange 121 and the atomizer seat 13 to further reduce leakage. The sealing gasket 16 can be annular and fits over the lower tube section 181, with its inner wall sealingly mating with the outer wall of the lower tube section 181. The lower side of the inner flange 121 is pressed against the top surface of the atomizer seat 13 via the sealing gasket 16.

[0065] The sealing gasket 17 and the sealing gasket 16 can both be made of flexible sealing materials such as silicone, which is beneficial to improving the sealing effect.

[0066] In some embodiments, the atomizer seat 13 may include a base 131 and a connecting portion 132 extending downward from the lower end surface of the base 131. The base 131 may be cylindrical, and its top surface extends downward to form a mounting hole 130, and the lower end of the lower tube section 181 is embedded in the mounting hole 130.

[0067] The connecting portion 132 may be cylindrical, with a threaded outer wall surface for threaded connection to the power supply unit 200. The outer diameter of the connecting portion 132 may be smaller than the outer diameter of the base 131. At least one air inlet hole 1320 may be formed on the upper sidewall of the connecting portion 132, which is not threaded. External air may enter the lower end of the vent tube 18 through the air inlet hole 1320 and further flow upward to the air flow hole 210, carrying away the aerosol generated by the atomization core 20.

[0068] In some embodiments, the atomizer 100 further includes an electrode column 15 longitudinally insulated and disposed within the atomizer base 13. In some embodiments, the atomizer base 13 is electrically conductive. The two poles of the heating element 22 can be electrically connected to the atomizer base 13 and the electrode column 15, respectively. When the atomizer 100 is connected to the power supply unit 200, the atomizer base 13 and the electrode column 15 can respectively contact and conduct with the two electrode columns on the power supply unit 200, thereby electrically connecting to the battery of the power supply unit 200.

[0069] An insulating sleeve 14 may be further provided between the atomizer seat 13 and the electrode column 15 , and the insulating sleeve 14 ensures electrical insulation between the atomizer seat 13 and the electrode column 15 .

[0070] In some embodiments, a central hole 150 may be axially defined within the electrode column 15. This central hole 150 communicates with the lower end of the vent tube 18. In one aspect, central hole 150 can be used for air intake, allowing ambient air to enter the lower end of the vent tube 18 through central hole 150 and further flow upward to the airflow holes 210. In another aspect, central hole 150 can communicate with an airflow sensor of the power supply unit 200, enabling the airflow sensor to detect changes in airflow during a user's inhalation.

[0071] In some embodiments, the central hole 150 may extend upward from the bottom surface of the electrode column 15 but not through the top surface of the electrode column 15. This prevents leaked liquid from the atomizer 100 from directly falling into the central hole 150 and contaminating the power supply unit 200. Accordingly, at least one vent hole 151 is provided through the sidewall of the electrode column 15 to connect the central hole 150 with the air flow hole 210. Preferably, there are multiple vent holes 151, which may be disposed in the portion of the upper end of the electrode column 15 that extends beyond the insulating sleeve 14 and evenly spaced around the circumference of the insulating sleeve 14.

[0072] In this embodiment, the liquid injection channel 101 is provided at the upper end of the housing 10. Specifically, the liquid injection channel 101 extends longitudinally through the suction nozzle 11. The number of liquid injection channels 101 is not limited, and there may be one or more liquid injection channels. In this embodiment, there are two liquid injection channels 101, one on each side of the suction channel 110.

[0073] The sealing member 40 can be sleeved on the vent pipe 18, specifically, it can be sleeved on the upper pipe section 183. In some embodiments, the sealing member 40 can be integrally formed of an elastic material such as silicone or rubber.

[0074] The seal 40 includes at least one deformable portion 41. The deformable portion 41 has a first state separating the liquid storage chamber 120 from the liquid injection channel 101, and a second state connecting the liquid storage chamber 120 and the liquid injection channel 101. When the pressure applied to the deformable portion 41 exceeds the minimum deforming force of the deformable portion 41, the deformable portion 41 can transition from the first state to the second state. When the pressure applied to the deformable portion 41 is released, the deformable portion 41 rebounds from the second state to the first state.

[0075] In some embodiments, as Figure 3 、 Figure 4 As shown, in the first state, the deformable portion 41 can be roughly umbrella-shaped, and the deformable portion 41 gradually expands toward the liquid storage chamber 120. In this embodiment, the deformable portion 41 blocks the upper end opening of the liquid storage chamber 120, that is, the deformable portion 41 gradually expands from top to bottom. The constricted end (i.e., the end with a smaller outer diameter) of the deformable portion 41 is sleeved on the vent tube 18 and can be sealed with the outer wall surface of the vent tube 18 (e.g., an interference fit), and the flared end (i.e., the end with a larger outer diameter) of the deformable portion 41 is sealed with the inner wall surface of the liquid storage tube 12 (e.g., an interference fit), thereby sealing the liquid storage chamber 120.

[0076] The thickness of the deformable portion 41 may be uniform or non-uniform. In this embodiment, the thickness of the deformable portion 41 gradually decreases from the constricted end to the flared end. The thicker thickness of the deformable portion 41 at the constricted end facilitates increased strength. The thickness of the deformable portion 41 decreases toward the flared end, which can reduce the force required to deform the deformable portion 41 during injection. In other embodiments, the flared end of the deformable portion 41 may also be thickened to increase the elastic force required to open the deformable portion 41 and improve sealing reliability.

[0077] In some embodiments, the seal 40 further includes a sleeve portion 42. The sleeve portion 42 is tubular and sleeved onto the vent tube 18. The inner wall of the sleeve portion 42 seals against the outer wall of the vent tube 18, thereby enhancing the strength of the seal 40 and the sealing effect on the liquid storage chamber 120. In some embodiments, the inner wall of the sleeve portion 42 may be formed with at least one annular convex bump 421. The sleeve portion 42 creates an interference fit with the outer wall of the upper tube section 183 of the vent tube 18 via the annular convex bump 421, further enhancing the sealing effect.

[0078] The constricted end of the deformable portion 41 is connected to the sleeve portion 42. There may be one or more deformable portions 41. In this embodiment, there is only one deformable portion 41, which is integrally connected to the end of the sleeve portion 42 facing the liquid storage chamber 120. In other embodiments, there may be multiple deformable portions 41, which may be spaced apart in the axial direction of the sleeve portion 42.

[0079] When the nebulizer 100 is in normal use, the sealing member 40 is in the first state separating the liquid storage chamber 120 from the liquid injection channel 101 , thereby sealing the liquid storage chamber 120 and preventing the aerosol generating medium in the liquid storage chamber 120 from leaking through the liquid injection channel 101 .

[0080] When it is necessary to inject liquid into the liquid storage chamber 120, Figure 5 、 Figure 6 As shown, the injection needle 2 of the injection device is inserted downward into the injection channel 101. The deformable portion 41 of the seal 40 is deformed by the pressure of the injection needle 2, thereby transitioning from the first state to the second state. At this point, a portion of the sidewall of the deformable portion 41 is compressed by the injection needle 2 and deforms inward, allowing the injection hole of the injection needle 2 to communicate with the liquid storage chamber 120, enabling injection.

[0081] Preferably, the cross-sectional area of ​​the injection channel 101 is larger than the cross-sectional area of ​​the injection needle 2. Thus, when the injection needle 2 is inserted into the injection channel 101, an exhaust channel 1010 is formed between the inner wall surface of the injection channel 101 and the outer wall surface of the injection needle 2. The liquid storage chamber 120 is connected to the outside world through the exhaust channel 1010. Thus, during the injection process, the air in the liquid storage chamber 120 can be discharged through the exhaust channel 1010, preventing the liquid storage chamber 120 from being squeezed and forming excessive compressed air.

[0082] The cross-sectional shape of the injection channel 101 can be the same as or similar to the cross-sectional shape of the injection needle 2, or different from or dissimilar to the cross-sectional shape of the injection channel 101. In this embodiment, the cross-sectional shapes of the injection channel 101 and the injection needle 2 are both circular, and the aperture of the injection channel 101 is larger than the aperture of the injection needle 2. Of course, in other embodiments, the cross-sectional shape of the injection channel 101 can also be any other shape, such as an elliptical, quasi-elliptical, square, or quasi-square.

[0083] When the injection needle 2 is pulled out, the pressure on the sealing member 40 is released, and the sealing member 40 changes from the second state to the first state, thereby sealing the liquid storage chamber 120 to prevent the aerosol generating medium in the liquid storage chamber 120 from leaking through the injection channel 101.

[0084] For example Figure 3 、 Figure 4 As shown, in some embodiments, a limiting protrusion 1831 is protruded from the outer side of the upper tube section 183, and the upper side surface of the limiting protrusion 1831 forms a first limiting end surface 1832 for limiting the lower end of the sleeve portion 42. The first limiting end surface 1832 is in contact (zero gap) or clearance fit (leaving a small gap) with the lower end surface of the sleeve portion 42 to prevent the seal 40 from moving downward during the insertion of the injection needle 2.

[0085] The nozzle 11 also includes a second limiting end surface 1121 and a third limiting end surface 1131. The second limiting end surface 1121 contacts or is clearance-fitted with the upper end surface of the sleeve portion 42. That is, there is zero clearance or a small clearance between the second limiting end surface 1121 and the upper end surface of the sleeve portion 42. The second limiting end surface 1121 can limit the upper end surface of the sleeve portion 42, preventing the seal 40 from moving upward during removal of the injection needle 2. It is understood that in other embodiments, the second limiting end surface 1121 can also be formed on the upper tube section 183.

[0086] The third limiting end surface 1131 can be defined by the lower end surface of the protrusion 113 of the nozzle 11. There is zero clearance or a small clearance between the third limiting end surface 1131 and the outer side surface of the deformable portion 41 to prevent the edge of the deformable portion 41 from turning up when the injection needle 2 is pulled out.

[0087] Figure 7、 Figure 8 A sealing member 40 in a second embodiment of the present invention is shown. Similar to the first embodiment, the sealing member 40 also includes a deformation portion 41 and a sleeve portion 42 connected to the constricted end of the deformation portion 41 .

[0088] The difference is that the seal 40 in this embodiment also includes at least one reinforcing rib 43. This at least one reinforcing rib 43 can be provided on the inner and / or outer side of the deformable portion 41 to strengthen the strength of the deformable portion 41. The inner side of the deformable portion 41 refers to the side of the deformable portion 41 close to the central axis, and the outer side of the deformable portion 41 refers to the side of the deformable portion 41 away from the central axis. Of course, in other embodiments, the strength of the deformable portion 41 can also be increased by increasing its thickness.

[0089] In this embodiment, there are multiple reinforcing ribs 43, and the multiple reinforcing ribs 43 are evenly spaced around the circumference of the deformable portion 41. In addition, the multiple reinforcing ribs 43 are all arranged on the outer side of the deformable portion 41, and each reinforcing rib 43 is integrated with the outer side of the sleeve portion 42 and the outer side of the deformable portion 41.

[0090] In addition, in this embodiment, the deformation portion 41 has a narrowed end 413, a widened end 411, and a middle portion 412 located between the narrowed end 413 and the widened end 411. The thickness of the narrowed end 413 and the widened end 411 is greater than that of the middle portion 412.

[0091] The thickness of the constricted end 413 is relatively thick to ensure the bonding strength between the constricted end 413 and the sleeve portion 42. The thickness of the middle portion 412 is relatively thin. This reduces the deformation force required of the deformable portion 41 during liquid injection, reducing the difficulty of deformation of the deformable portion 41. The thickness of the flared end 411 is relatively thick to increase the elastic force of the deformable portion 41 when it is expanded.

[0092] Figure 9 A sealing member 40 according to a third embodiment of the present invention is shown. The main difference between this sealing member 40 and the first embodiment is that the sealing member 40 includes two deformable portions 41 spaced apart along the axial direction of the sleeve portion 42. The provision of two deformable portions 41 enhances the sealing effect on the liquid storage chamber 120. Of course, in other embodiments, the number of deformable portions 41 may be more than two.

[0093] Figures 10 to 13 The fourth embodiment of the present invention shows an atomizer 100 , which differs from the first embodiment in that the injection channel 101 in the fourth embodiment is provided at the atomizer seat end of the atomizer 100 , that is, the injection channel 101 is provided on the atomizer seat 13 .

[0094] In addition, in this embodiment, the nozzle 11 and the liquid storage tube 12 are integrally formed. The atomizer seat 13 is partially embedded in the lower end opening of the liquid storage tube 12, so that the atomizer seat 13 and the liquid storage tube 12 are fixed together.

[0095] The atomizer seat 13 may include a base 131, a connecting portion 132 extending downward from the lower end surface of the base 131, and an embedding portion 133 extending upward from the upper end surface of the base 131. The outer diameter of the base 131 is larger than the outer diameters of the connecting portion 132 and the embedding portion 133. The outer diameter of the embedding portion 133 is adapted to the inner diameter of the liquid storage tube 12 so that the embedding portion 133 can be tightly embedded in the lower end opening of the liquid storage tube 12. The top surface of the embedding portion 133 is recessed to form a mounting hole 130 for inserting the lower end of the vent tube 18.

[0096] The injection channel 101 can extend upward from the lower end surface of the base 131. The number of injection channels 101 is not limited, and there can be one or more. In this embodiment, there are two injection channels 101, and the two injection channels 101 are respectively located on both sides of the radial direction of the base 131.

[0097] The seal 40 can be mounted on the lower section 181 of the vent tube 18 and can include a deformable portion 41 and a sleeve portion 42 connected to the constricted end of the deformable portion 41. The sleeve portion 42 is mounted on the lower section 181 and tightly fits therewith. The deformable portion 41 is connected to the upper end of the sleeve portion 42 and can be coaxially disposed therewith. Of course, in other embodiments, multiple deformable portions 41 can be provided and spaced apart in the axial direction of the sleeve portion 42.

[0098] In its natural state (i.e., when not under external pressure), the deformable portion 41 is roughly umbrella-shaped and gradually expands toward the liquid storage chamber 120. In this embodiment, the deformable portion 41 blocks the lower opening of the liquid storage chamber 120, that is, the deformable portion 41 gradually expands from bottom to top. The expanded end of the deformable portion 41 forms an interference fit with the inner wall of the liquid storage tube 12, thereby enhancing the sealing effect on the liquid storage chamber 120.

[0099] There can be zero gap or a small gap between the lower end surface of the sleeve portion 42 and the top surface of the embedded portion 133. The top surface of the embedded portion 133 forms a second limiting end surface for limiting the axial position of the seal 40 to prevent the seal 40 from moving downward during the removal of the injection needle 2.

[0100] A retaining wall 1812 is protruding from the outer side of the lower tube section 181. There may be zero gap or a small gap between the upper end surface of the sleeve portion 42 and the lower end surface of the retaining wall 1812. The lower end surface of the retaining wall 1812 forms a first limiting end surface for limiting the axial position of the seal 40, which can prevent the seal 40 from moving upward during the insertion of the injection needle 2.

[0101] like Figure 13 As shown, when the nebulizer 100 needs to be injected, the nebulizer 100 is first turned upside down so that the atomizer seat 13 of the nebulizer 100 faces upward. Then, the injection needle 2 of the injection device is inserted downward into the injection channel 101. Part of the side wall of the deformation portion 41 is compressed by the injection needle 2 and deformed inward, thereby opening the liquid storage chamber 120, so that the injection hole of the injection needle 2 is connected to the liquid storage chamber 120 to achieve liquid injection. At the same time, an exhaust channel 1010 is formed between the inner wall surface of the injection channel 101 and the outer wall surface of the injection needle 2. During the injection process, the air in the liquid storage chamber 120 can be discharged through the exhaust channel 1010 to prevent the liquid storage chamber 120 from being squeezed and forming too much compressed air.

[0102] After the injection is completed, the injection needle 2 is pulled out, and the pressure on the deformed portion 41 is released, so that the deformed portion 41 returns to its original natural state, thereby achieving sealing of the liquid storage chamber 120.

[0103] It can be understood that the above technical features can be used in any combination without limitation.

[0104] The above embodiments only express the specific implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, all of which fall within the scope of protection of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of coverage of the claims of the present invention.

Claims

1. An atomizer, characterized in that: include: A housing (10), wherein one end of the housing (10) has a liquid injection channel (101), and the housing (10) has a liquid storage chamber (120) therein; and a sealing member (40), the sealing member (40) being elastic and being arranged between the liquid storage chamber (120) and the liquid injection channel (101), The sealing member (40) has a first state in which the liquid storage chamber (120) and the liquid injection channel (101) are separated, and a second state in which the liquid storage chamber (120) and the liquid injection channel (101) are connected. The sealing member (40) is configured to at least partially deform when subjected to an external force and transform into the second state, and to return to the first state when the external force is released.

2. The atomizer according to claim 1, characterized in that The injection channel (101) is configured such that, when the injection needle (2) is inserted into the injection channel (101), an exhaust channel (1010) is formed between the inner wall surface of the injection channel (101) and the outer wall surface of the injection needle (2) to connect the liquid storage chamber (120) with the outside.

3. The atomizer according to claim 1 or 2, characterized in that The sealing member (40) includes a deformable portion (41), which is umbrella-shaped and gradually expands toward the liquid storage chamber (120), and the expanded end of the deformable portion (41) is sealed with the inner wall surface of the shell (10).

4. The atomizer according to claim 3, characterized in that The housing (10) comprises a liquid storage tube (12), a vent tube (18) arranged in the liquid storage tube (12), and a nozzle (11) and an atomizer seat (13) respectively arranged at both ends of the liquid storage tube (12); the liquid storage cavity (120) is defined between the inner wall surface of the liquid storage tube (12) and the outer wall surface of the vent tube (18); and the sealing member (40) is sleeved on the vent tube (18).

5. The atomizer according to claim 4, characterized in that The liquid injection channel (101) is formed on the suction nozzle (11) or the atomizing seat (13).

6. The atomizer according to claim 5, characterized in that The sealing member (40) comprises a sleeve portion (42) connected to the constricted end of the deformation portion (41); the sleeve portion (42) is tubular and is sealedly sleeved on the vent pipe (18).

7. The atomizer according to claim 6, characterized in that A first limiting end surface and a second limiting end surface are formed in the housing (10) and are spaced apart in the axial direction. The first limiting end surface is in contact with or has clearance fit with an axial end surface of the sleeve portion (42). The second limiting end surface is in contact with or clearance fit with the other axial end surface of the sleeve portion (42).

8. The atomizer according to claim 7, characterized in that The first limiting end surface is formed by a protrusion on the outside of the vent pipe (18), and the second limiting end surface is formed on the suction nozzle (11) or the atomizer seat (13).

9. The atomizer according to claim 3, characterized in that The sealing member (40) includes at least one reinforcing rib (43) disposed on the inner side surface or the outer side surface of the deformation portion (41).

10. An electronic atomization device, characterized in that: It comprises an atomizer (100) according to any one of claims 1 to 9 and a power supply device (200) matched with the atomizer (100).

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