Atomizer and electronic atomization device

Abstract

The utility model discloses an atomizer and an electronic atomization device. The atomizer comprises a liquid storage cavity, an atomization assembly and a liquid storage assembly. The liquid storage cavity is used for storing an atomized matrix; the atomization assembly comprises an air channel pipe, an air channel is defined by the air channel pipe, at least one ventilation hole is formed in the pipe wall of the air channel pipe, and the ventilation hole is communicated with the atmosphere through the air channel; the liquid storage assembly is communicated with the liquid storage cavity and is at least partially arranged on the periphery of the airway tube. The liquid storage assembly comprises at least two liquid storage pieces which are different in density or material, the liquid guiding capacity and the liquid locking capacity of the liquid storage assembly are balanced, liquid guiding is smooth, and meanwhile the good atomization matrix leakage prevention effect is achieved. And at least one liquid storage part is communicated with the air channel fluid through the air exchange hole, so that the pressure change in the liquid storage cavity can be balanced, the gas-liquid balance is promoted, and the liquid leakage risk caused by the pressure change of the liquid storage cavity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to atomization technical field especially relates to an atomizer and electronic atomization device. BACKGROUND

[0002] The electronic atomization device is a kind of equipment that can atomize aerosol generating substrate and produce aerosol.The electronic atomization device in the related art stores liquid atomization substrate in a liquid storage cavity, and generates aerosol by heating liquid atomization substrate with a heating element.The internal pressure of the liquid storage cavity changes with the temperature change of the environment where the electronic atomization device is located.Under the condition of long-time placement or transportation, the liquid atomization substrate in the liquid storage cavity is prone to leak to the outside of the liquid storage cavity under the action of pressure, thereby causing waste of atomization substrate and negative impact on user experience. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an atomizer and electronic atomization device that reduce the risk of liquid leakage.

[0004] The technical solution adopted by the utility model to solve its technical problem is: an atomizer is provided, which includes a liquid storage cavity, an atomization assembly and a liquid storage assembly; the liquid storage cavity is used for storing atomization substrate; the atomization assembly includes an air passage pipe, the air passage pipe is enclosed to form an air passage, the pipe wall of the air passage pipe is provided with at least one air exchange hole, the air exchange hole is connected in communication with the air passage and the atmosphere; the liquid storage assembly is connected in communication with the liquid storage cavity, and at least partially disposed at the periphery of the air passage pipe; the liquid storage assembly includes at least two liquid storage pieces with different densities or different materials, and at least one of the liquid storage pieces is connected in fluid communication with the air passage through the air exchange hole.

[0005] In some embodiments, the atomization assembly further includes an atomization core arranged in the air passage, the liquid storage assembly includes a first liquid storage piece and a second liquid storage piece, the density of the first liquid storage piece is less than that of the second liquid storage piece, and the atomization core, the first liquid storage piece, the second liquid storage piece and the liquid storage cavity are connected in communication in sequence.

[0006] In some embodiments, the at least one air exchange hole includes a first air exchange hole, the first liquid storage piece is exposed to the air passage and connected in communication with the atmosphere through the first air exchange hole, the atomization core is exposed to the first liquid storage piece through the first air exchange hole, and the first liquid storage piece is also connected in liquid communication with the atomization core through the first air exchange hole.

[0007] In some embodiments, the at least one vent hole includes a second vent hole, the second liquid storage member is exposed to the airway and communicated with the atmosphere through the second vent hole, a vent cavity is formed between the second liquid storage member and the airway tube, and the vent cavity is communicated with the second liquid storage member and the second vent hole, respectively.

[0008] In some embodiments, the second liquid storage member is provided with a first central through hole, the airway tube is arranged in the first central through hole, a cross-sectional dimension of the first central through hole is greater than a maximum cross-sectional dimension of the airway tube, and a hole wall surface of the first central through hole and an outer peripheral surface of the airway tube define the vent cavity.

[0009] In some embodiments, a volume of the first liquid storage member is greater than a volume of the second liquid storage member.

[0010] In some embodiments, the atomizer further includes a first housing and a first sealing member, the first housing is enclosed to form a receiving cavity, the atomization assembly, the liquid storage assembly and the first sealing member are arranged in the receiving cavity, and the atomization assembly and the liquid storage assembly are located on the same side of the first sealing member, the first sealing member is provided with a second central through hole, one end of the airway tube is arranged in the second central through hole and sealingly matched with a hole wall surface of the second central through hole, and an outer periphery of the first sealing member is sealingly matched with an inner wall surface of the first housing.

[0011] In some embodiments, the first housing includes a housing body and a bottom cover, the housing body and the bottom cover are connected and jointly define the receiving cavity, an outer periphery of the first sealing member is sealingly matched with an inner wall surface of the housing body, and the atomizer further includes a liquid absorbing member for absorbing an atomization substrate, the liquid absorbing member is arranged between the first sealing member and the bottom cover.

[0012] In some embodiments, the atomizer further includes a second housing and a second sealing member, the second housing is connected with the first housing, the second housing is formed with a liquid storage cavity and an air outlet passage communicated with the atmosphere, the liquid storage cavity is communicated with the liquid storage member, and the air outlet passage is communicated with the airway, the second sealing member is arranged between the second housing and the first housing and sealingly matched with the second housing and the first housing, respectively.

[0013] The utility model also provides an electronic atomization device, it includes the atomizer of any one in above, and the power supply unit connected with the atomizer.

[0014] The utility model discloses at least has following beneficial effects: liquid storage component includes at least two density different or material different liquid storage spare, adopts at least two density different or material different liquid storage spare mutual cooperation, can make the liquid guiding capacity and the liquid locking capacity of liquid storage component are more balanced, has the effect of good anti -fogging matrix leakage while liquid guiding smoothly, simultaneously, at least one liquid storage spare passes through the air hole and the air passage fluid communication, and the liquid storage cavity and liquid storage component are communicated, and thus can balance the pressure change of liquid storage cavity inside, promotes gas -liquid balance to reduce the risk of leakage caused by liquid storage cavity pressure change. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model, below will combine with the drawings and example to this utility model make further explanation, the drawings wherein:

[0016] Figure 1 It is the three-dimensional structure schematic diagram of electronic atomization device in some embodiments of the utility model;

[0017] Figure 2 It is Figure 1 The longitudinal section structure schematic diagram of electronic atomization device shown in;

[0018] Figure 3 It is Figure 1 The exploded structure schematic diagram of electronic atomization device shown in;

[0019] Figure 4 It is the longitudinal section structure schematic diagram of atomizer in some embodiments of the utility model;

[0020] Figure 5 It is Figure 4 The exploded structure schematic diagram of atomizer shown in;

[0021] Figure 6 It is Figure 5 The lower half exploded structure schematic diagram of atomizer shown in;

[0022] Figure 7 It is Figure 6 The longitudinal section structure schematic diagram of atomizer shown in;

[0023] Figure 8 It is the three-dimensional structure schematic diagram of atomization subassembly of atomizer in some embodiments of the utility model;

[0024] Figure 9 It is Figure 8 The longitudinal section structure schematic diagram of atomization subassembly shown in. DETAILED DESCRIPTION

[0025] For the purpose of having a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the terms "first", "second", "third" and the like are merely intended to facilitate the description of the present application, and should not be interpreted as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features with "first", "second", "third" and the like can explicitly or implicitly include one or more features.

[0026] Figures 1 to 3 An electronic atomization device of an embodiment of the present application is shown, which comprises an atomizer 1 and a power supply unit 2 connected with the atomizer 1. The atomizer 1 can store an atomization substrate, which can be a liquid atomization substrate. The power supply unit 2 can provide power supply for the atomizer 1. The atomizer 1 can heat and atomize the atomization substrate stored therein to generate aerosol for a user to inhale under the condition of being powered on.

[0027] As shown in Figures 1 to 3 some embodiments, the power supply unit 2 and the atomizer 1 can be a split structure, that is, the power supply unit 2 and the atomizer 1 are detachably connected. The power supply unit 2 comprises a battery core 21 and a containing cavity 20, the battery core 21 is arranged in the containing cavity 20, and the containing cavity 20 further reserves a part of space for accommodating the atomizer 1. The atomizer 1 can be loaded into the containing cavity 20 to form an electrical connection with the battery core 21. Alternatively, in other embodiments, the power supply unit 2 and the atomizer 1 can also be an integrated structure which is difficult to separate.

[0028] Figure 4 and Figure 5 An atomizer 1 of an embodiment of the present application is shown, which at least comprises a liquid storage cavity 60, an atomization assembly 11 and a liquid storage assembly 12. The liquid storage cavity 60 is used for storing a liquid atomization substrate. The liquid storage assembly 12 is in communication with the liquid storage cavity 60 and is used for buffering the liquid atomization substrate. The atomization assembly 11 can form an electrical connection with the battery core 21, and is used for heating and atomizing the atomization substrate to generate aerosol under the condition of being powered on, and guiding the aerosol out for a user to inhale.

[0029] As shown in Figures 6 to 9As shown, the atomizing component 11 includes at least an air passage 111, which forms an airway that is connected to the atmosphere. The wall of the air passage 111 has at least one ventilation hole, which is connected to the atmosphere through the airway. That is, the number of ventilation holes can be one, two, three, etc., and can be set according to the required ventilation efficiency. The liquid storage component 12 is at least partially disposed around the air passage 111. That is, the liquid storage component 12 can be partially disposed around the air passage 111, or it can be entirely disposed around the air passage 111. Specifically, the liquid storage component 12 can surround the outer wall of the air passage 111. The ventilation hole can directly penetrate the wall of the air passage 111 along its thickness direction; during manufacturing, only a horizontal hole needs to be drilled in the wall of the air passage 111. Alternatively, the ventilation hole can also penetrate from the end face of the air passage 111 wall to the inner side of the wall.

[0030] like Figures 4 to 7 As shown, the liquid storage assembly 12 includes at least two liquid storage elements with different densities or different materials. The material of the liquid storage elements includes any suitable material capable of delivering the liquid atomizing matrix toward the atomizing assembly 11, and may be a combination of multiple materials. For example, the reservoir may include capillary materials, which may include sponge or foam materials, ceramic-based or graphite-based materials in the form of fibers or sintered powders, foamed metal or plastic materials, fibrous materials (e.g., made from virgin or pressed fibers (e.g., cellulose acetate fibers, polyester fibers, bonded polyolefin fibers, polyethylene fibers, polyester fibers, or polypropylene fibers, nylon fibers), or ceramics. The capillary material may have any suitable capillary action to be used with different liquid physical properties. The capillary material may include materials that are porous themselves, such as ceramic materials of alumina (corundum). Alternatively, the porous material may include materials with a plurality of fabricated pores to allow the liquid flotation matrix to migrate to the atomizing assembly 11. The porous material may include hydrophilic materials to improve the distribution and diffusion of the liquid flotation matrix. A particularly preferred one or more materials will depend on the physical properties of the liquid flotation matrix. The porous material may have any suitable porosity to be used with different liquid physical properties.

[0031] The various liquid storage members can be independent of each other, or can be integrated in a structure that is difficult to separate. When the densities of the at least two liquid storage members are different, in the case of the same volume, the greater the density of the liquid storage member, the denser the fibers therein, the more the atomized substrate contacts the fibers, the stronger the capillary adsorption between the atomized substrate and the fibers, and the more difficult the atomized substrate is to be locked in the liquid storage member; the smaller the density of the liquid storage member, the sparser the fibers therein, the more pores, and the more atomized substrate can be stored in the liquid storage member. Therefore, the liquid storage member with smaller density has better liquid storage and guiding capacity, can store more atomized substrate, and guide liquid more smoothly; the liquid storage member with greater density has better liquid locking capacity, and has better effect of preventing atomized substrate from leaking. When the materials of the at least two liquid storage members are different, the liquid storage members of different materials also have different liquid guiding and locking capacities. Therefore, the at least two liquid storage members with different densities or different materials complement each other, so that the liquid guiding and locking capacities of the liquid storage assembly 12 are balanced, and the atomized substrate is prevented from leaking while the liquid is guided smoothly.

[0032] However, if the internal pressure of the liquid storage cavity 60 changes when affected by temperature change, the atomized substrate in the liquid storage assembly 12 or the liquid storage cavity 60 will still be subjected to extrusion pressure, which can force the atomized substrate to flow into the part assembly gap of the atomizer 1 and leak out of the atomizer 1 from the part assembly gap.

[0033] As described above, in order to reduce the risk of liquid leakage caused by pressure change of the liquid storage cavity 60, at least one liquid storage member is in fluid communication with the air channel through the air exchange hole. Fluid communication means that both gas and liquid can flow between the liquid storage member, the air exchange hole and the air channel. The main function of the air exchange hole is to exchange air, and at least to ensure the communication of gas between the liquid storage member, the air exchange hole and the air channel. Specifically, at least one liquid storage member is exposed to the air channel through the air exchange hole and is connected to the atmosphere through the air channel. That is, at least one liquid storage member is directly exposed to the air channel through the air exchange hole towards the local surface of the pipe wall of the air channel pipe 111, and the exposed surface is directly connected through the air exchange hole and the air channel. That is, at least one liquid storage member is directly connected through the air exchange hole and the air channel, and there is no other obstacle between the surface of the liquid storage member exposed to the air exchange hole and the air channel. Thus, the liquid storage member is connected to the atmosphere through the air exchange hole, the air channel and the atmosphere in turn, and the liquid storage cavity 60 and the liquid storage assembly 12 are connected, the air exchange hole plays a role in promoting gas-liquid balance, so as to balance the pressure change inside the liquid storage cavity 60, thereby reducing the risk of liquid leakage caused by pressure change of the liquid storage cavity 60.

[0034] In summary, the liquid storage assembly 12 includes at least two liquid storage components with different densities or materials. By using at least two liquid storage components with different densities or materials in combination, the liquid storage assembly 12 can achieve a relatively balanced liquid conduction and liquid retention capacity. While ensuring smooth liquid conduction, it also has a good effect on preventing leakage of the atomized matrix. At the same time, at least one liquid storage component is exposed to the air passage through a vent and is connected to the atmosphere through the air passage. The liquid storage chamber 60 is connected to the liquid storage assembly 12. This can balance the pressure changes inside the liquid storage chamber 60, promote gas-liquid balance, and reduce the risk of leakage caused by pressure changes in the liquid storage chamber 60.

[0035] like Figure 4 and Figure 5 As shown, in some embodiments, the atomizing assembly 11 further includes an atomizing core disposed in the airway. The atomizing core can form an electrical connection with the battery 21, and is used to heat and atomize the atomizing matrix to generate an aerosol when energized. The airway tube 111 guides the aerosol through the airway for the user to inhale. The liquid storage assembly 12 includes a first liquid storage element 121 and a second liquid storage element 122, the density of the first liquid storage element 121 being less than the density of the second liquid storage element 122. The atomizing core, the first liquid storage element 121, the second liquid storage element 122, and the liquid storage chamber 60 are sequentially connected. That is, the atomizing core and the less dense first liquid storage element 121 are directly connected, and liquid can be exchanged between them, with the first liquid storage element 121 directly supplying liquid to the atomizing core. The more dense second liquid storage element 122 is not directly connected to the atomizing core, but is located between the first liquid storage element 121 and the liquid storage chamber 60, and is used to buffer the atomizing matrix and supply liquid to the first liquid storage element 121.

[0036] Specifically, in the initial state (i.e. before the atomizer 1 is activated for the first time), both the first liquid storage member 121 and the second liquid storage member 122 are in a saturated state (the saturated state can be a state in which the liquid storage amount is greater than 90% of the designed maximum liquid storage amount). The liquid storage member in the saturated state will form a liquid film or other state that prevents the flow of liquid, which will cause the liquid storage member to stop absorbing liquid automatically. Conversely, the liquid storage member in the unsaturated state will automatically absorb liquid. During the user's suction, the atomization substrate of the first liquid storage member 121 will be preferentially supplied to the atomization core for heating and atomization, and the atomization substrate of the first liquid storage member 121 will be gradually consumed, causing the first liquid storage member 121 to enter an unsaturated state (e.g. the liquid storage amount is less than 50% of the designed maximum liquid storage amount). Due to the pressure difference between the unsaturated first liquid storage member 121 and the second liquid storage member 122, the unsaturated first liquid storage member 121 will automatically absorb liquid to the second liquid storage member 122, and the atomization substrate of the second liquid storage member 122 will be gradually consumed, causing the second liquid storage member 122 to enter an unsaturated state (e.g. the liquid storage amount is less than 50% of the designed maximum liquid storage amount). Due to the pressure difference between the unsaturated second liquid storage member 122 and the liquid storage cavity 60, the unsaturated second liquid storage member 122 will automatically absorb liquid to the liquid storage cavity 60 until the second liquid storage member 122 reaches the saturated state and stops absorbing liquid automatically. Due to the density difference between the first liquid storage member 121 and the second liquid storage member 122, the amount of liquid supplied by the user each time will be slightly more than the required amount of atomization substrate, ensuring smooth liquid guidance and preventing the atomization core from drying out; and the amount of liquid supplied by the user each time will automatically adapt to the length of the suction time, providing good mouthfeel stability. Conversely, when the user does not inhale, the liquid storage assembly 12 is in a saturated state and stops absorbing liquid, thereby achieving automatic liquid supply during inhalation and no liquid supply during non-inhalation.

[0037] Because the density of the first liquid storage member 121 is less than the density of the second liquid storage member 122, the liquid storage capacity (liquid storage amount) of the first liquid storage member 121 is greater than that of the second liquid storage member 122, so the amount of liquid absorbed by the first liquid storage member 121 to the second liquid storage member 122 will not be excessive for the first liquid storage member 121. Thus, the first liquid storage member 121 will only reach the saturated state in the initial state, and after the first time the user inhales, the first liquid storage member 121 will always be in an unsaturated state (e.g. the liquid storage amount will always be less than 70% of the designed maximum liquid storage amount). Therefore, the first liquid storage member 121 always leaves a part of the gas space (e.g. the space of the remaining 30% of the liquid storage amount) that has not been absorbed by the liquid during the entire inhalation process, which can be used to balance the pressure changes of the liquid storage cavity 60 and reduce the risk of liquid leakage of the first liquid storage member 121, thereby effectively reducing the risk of liquid leakage due to temperature difference during the standby process of the electronic atomization device.

[0038] Similarly, the second liquid storage component 122 with a higher density plays a role in locking the liquid when the saturation is high, preventing the atomizing matrix from leaking outward; when the saturation of the second liquid storage component 122 with a higher density is low, the remaining liquid storage space can be used for gas exchange, which can promote gas-liquid balance.

[0039] Furthermore, such as Figures 4 to 7 As shown, in some embodiments, the volume of the first liquid storage element 121 is larger than the volume of the second liquid storage element 122. This further increases the difference in liquid storage capacity between the first and second liquid storage elements 121, making the liquid storage capacity of the first liquid storage element 121 significantly greater than that of the second liquid storage element 122. This ensures that the amount of liquid absorbed by the first liquid storage element 121 from the second liquid storage element 122 is not excessive for the first liquid storage element 121, keeping it in an unsaturated state after each absorption and further reducing the risk of leakage due to temperature differences. Of course, in other embodiments, the volume of the first liquid storage element 121 can also be equal to the volume of the second liquid storage element 122. Under the same volume conditions, the first liquid storage element 121, with its lower density and sparser fibers, can store more atomizing matrix, and its liquid storage capacity will also be greater than that of the second liquid storage element 122. As long as the liquid storage capacity of the first liquid storage component 121 is greater than that of the second liquid storage component 122, it can be ensured that the first liquid storage component 121 will not reach saturation during each liquid absorption.

[0040] like Figures 4 to 9 As shown, in some embodiments, at least one ventilation port includes a first ventilation port 131 and a second ventilation port 132. A first liquid reservoir 121 is exposed to the air passage and connected to the atmosphere through the first ventilation port 131, and a second liquid reservoir 122 is exposed to the air passage and connected to the atmosphere through the second ventilation port 132. The area or number of first ventilation ports 131 may be greater than the area or number of second ventilation ports 132. For example... Figure 8 and Figure 9 As shown, in some embodiments, the second ventilation hole 132 is a circular hole, and a plurality of second ventilation holes 132 are evenly spaced along the circumference of the air passage 111; the first ventilation hole 131 is a rectangular hole, and a plurality of first ventilation holes 131 are also evenly spaced along the circumference of the air passage 111, and are located below the second ventilation holes 132. The first ventilation holes 131 are closer to the atomizing core than the second ventilation holes 132.

[0041] like Figure 4 , Figure 8 and Figure 9As shown, in some embodiments, the atomizing core is exposed to the first liquid reservoir 121 through the first vent 131, and the first liquid reservoir 121 is also connected to the liquid guide of the atomizing core through the first vent 131. That is, the first vent 131 can also be used as a liquid guide. A portion of the atomizing core is exposed to the surface of the first liquid reservoir 121 facing the air passage 111 through the first vent 131, thereby communicating with the liquid guide of the first liquid reservoir 121, which can provide the atomizing matrix for the atomizing core. Another portion of the surface of the first liquid reservoir 121 facing the air passage 111 is directly exposed to the air passage through the first vent 131, connecting with the atmosphere through the air passage, thus promoting gas-liquid balance. Therefore, the first vent 131 serves both to promote gas-liquid balance and to guide liquid to the atomizing core. Of course, in some other embodiments not shown, a liquid guide hole may be provided on the airway tube 111 at the position corresponding to the atomizing core. This additional liquid guide hole may not be connected to the air exchange hole.

[0042] Specifically, such as Figure 8 and Figure 9 As shown, in some embodiments, the atomizing core includes a liquid guide 112 and a heating element 113. The liquid guide 112 is a tube extending through both ends, and the cavity enclosed by the liquid guide 112 is connected to the air passage. The heating element 113 is attached to the inner circumferential surface of the liquid guide 112. The liquid guide 112 may also include capillary materials, porous materials, other materials with capillary channels, or other materials with capillary force micropores or microgrooves, such as silicone, plastic, stainless steel, glass, etc. The optional materials for the liquid guide 112 can be set with reference to the optional materials for the liquid storage component. The liquid guide 112 is exposed to the first liquid storage component 121 through the first vent 131, and the first liquid storage component 121 is in liquid-conducting communication with the liquid guide 112 through the first vent 131.

[0043] like Figure 4 As shown, in some embodiments, a ventilation chamber 40 is formed between the second liquid storage component 122 and the air passage 111. The ventilation chamber 40 is connected to the second liquid storage component 122 and the second ventilation port 132, respectively. Thus, the second liquid storage component 122 is connected to the atmosphere in sequence through the ventilation chamber 40, the ventilation port, and the air passage. The ventilation chamber 40 also plays a role in promoting gas-liquid balance, which can further balance the pressure changes between the liquid storage component 12 and the liquid storage chamber 60, effectively reducing the risk of leakage due to temperature differences during the storage of the electronic atomizing device.

[0044] like Figure 6 and Figure 7As shown, in some embodiments, the second liquid reservoir 122 is provided with a first central through hole 123, through which the air passage 111 passes. The cross-sectional dimension R1 of the first central through hole 123 is larger than the maximum cross-sectional dimension R2 of the air passage 111 (e.g., the outer diameter of a circular air passage 111). The ventilation chamber 40 is defined between the wall surface of the first central through hole 123 and the outer peripheral surface of the air passage 111. That is, the ventilation chamber 40 can be constructed using the dimensional difference between the first central through hole 123 and the air passage 111, requiring only adjustments to the design dimensions of the second liquid reservoir 122 and the air passage 111, without increasing the manufacturing difficulty of the second liquid reservoir 122. Alternatively, in other embodiments, without considering manufacturing difficulty, a groove can be formed on the outer peripheral surface of the second liquid reservoir 122, and the ventilation chamber 40 can be formed between the groove wall surface and the outer peripheral surface of the air passage 111.

[0045] like Figures 4 to 7 As shown, in some embodiments, the atomizer 1 further includes a first housing 41 and a first seal 42. The first housing 41 encloses a receiving cavity, within which the atomizing assembly 11, the liquid storage assembly 12, and the first seal 42 are disposed. The atomizing assembly 11 and the liquid storage assembly 12 are located on the same side of the first seal 42. The first seal 42 has a second central through hole 420, one end of the air passage tube 111 passes through the second central through hole 420 and is sealed to the wall of the second central through hole 420. The outer periphery of the first seal 42 is sealed to the inner wall of the first housing 41. Specifically, the first seal 42 may be an annular elastic member, with the outer periphery of the first seal 42 and the inner wall of the first housing 41 being press-fitted, so that the outer periphery of the first seal 42 is tightly attached to the inner wall of the first housing 41. Thus, the atomizing assembly 11 and the liquid storage assembly 12 can be sealed between the first seal 42 and the inner wall of the first housing 41, reducing the risk of leakage of the atomizing matrix to the outside of the first housing 41. The first seal 42 can also serve to support and fix the airway tube 111.

[0046] like Figures 4 to 7As shown, in some embodiments, the first housing 41 includes a housing body 411 and a bottom cover 412, which are connected and together enclose a receiving cavity. The housing body 411 and the bottom cover 412 may be detachably connected. The outer periphery of the first seal 42 and the inner wall surface of the housing body 411 are sealed together. The atomizer 1 also includes a liquid suction member 70 for adsorbing the atomized matrix, which is disposed between the first seal 42 and the bottom cover 412. The liquid suction member 70 may be made of fibrous materials such as cotton. Specifically, the liquid suction member 70 may be installed on the surface of the bottom cover 412 facing the first seal 42. If a small amount of atomized matrix drips from the gap between the second central through hole 420 of the first seal 42 and the airway tube 111, the dripped atomized matrix can be adsorbed by the liquid suction member 70, thereby reducing the risk of leakage of the atomized matrix to the outside of the first housing 41.

[0047] like Figure 4 and Figure 5 As shown, in some embodiments, the atomizer 1 further includes a second housing 51 and a second sealing member 52. The second housing 51 is connected to the first housing 41. The second housing 51 forms a liquid storage chamber 60 and an air outlet channel 64 communicating with the atmosphere. The liquid storage chamber 60 is connected to a liquid storage component, and the air outlet channel 64 is connected to the air passage of the air duct 111. That is, the air passage of the air duct 111 is connected to the atmosphere through the air outlet channel 64. The second sealing member 52 is disposed between the second housing 51 and the first housing 41, and is sealed to both the second housing 51 and the first housing 41. Thus, the assembly gap between the second housing 51 and the first housing 41 is sealed by the second sealing member 52, which can reduce the risk of leakage of the atomizing matrix from the gap between the second housing 51 and the first housing 41. Specifically, as Figure 4 and Figure 5 As shown, the second housing 51 is provided with a first liquid guiding hole 61, which is connected to the liquid storage cavity 60. The shell body 411 of the first housing 41 has a boss 63 at one end away from the bottom cover 412. The boss 63 has a second liquid guiding hole 62, which is connected to the receiving cavity. When the second housing 51 and the first housing 41 are installed together, the boss 63 extends into the first liquid guiding hole 61. The second sealing member 52 is disposed between the hole wall surface of the first liquid guiding hole 61 and the outer wall surface of the boss 63, respectively sealingly engaging with the hole wall surface of the first liquid guiding hole 61 and the outer wall surface of the boss 63 to seal the gap between the boss 63 and the hole wall surface of the first liquid guiding hole 61. Specifically, the second seal 52 can be an annular elastic element. The outer periphery of the second seal 52 is interference-fitted with the wall surface of the first liquid guiding hole 61, and the outer periphery of the second seal 52 is interference-fitted with the outer wall surface of the boss 63, so that the second seal 52 is tightly attached to the wall surface of the boss 63 and the first liquid guiding hole 61 respectively, thereby reducing the risk of leakage of the atomizing matrix to the outside of the atomizer 1.

[0048] It can be understood that the above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope; it should be pointed out that for ordinary skilled person in the art, the above technical features can be freely combined without departing from the concept of the utility model, and a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, any equivalent transformation and modification within the scope of the utility model patent claim should belong to the scope of the utility model patent claim.

Claims

1. An atomizer (1) characterized in that, The device comprises: a liquid storage cavity (60) for storing an atomized substrate; an atomization assembly (11) comprising an air passage tube (111) which encloses an air passage, the tube wall of the air passage tube (111) being provided with at least one air exchange hole which is in communication with the air passage and the atmosphere; a liquid storage assembly (12) which is in communication with the liquid storage cavity (60) and is at least partially arranged outside the air passage tube (111), the liquid storage assembly (12) comprising at least two liquid storage members which are different in density or material, at least one of the liquid storage members being in fluid communication with the air passage through the air exchange hole.

2. The atomizer (1) according to claim 1, characterized in that The atomization assembly (11) further comprises an atomization core arranged in the air passage, the liquid storage assembly (12) comprises a first liquid storage member (121) and a second liquid storage member (122), the first liquid storage member (121) being smaller in density than the second liquid storage member (122), the atomization core, the first liquid storage member (121), the second liquid storage member (122) and the liquid storage cavity (60) being in communication in sequence.

3. The atomizer (1) according to claim 2, characterized in that The at least one air exchange hole comprises a first air exchange hole (131), the first liquid storage member (121) being exposed to the air passage and the atmosphere through the first air exchange hole (131); The atomization core is exposed to the first liquid storage member (121) through the first air exchange hole (131), the first liquid storage member (121) being in liquid communication with the atomization core through the first air exchange hole (131) as well.

4. The atomizer (1) according to claim 2, characterized in that The at least one air exchange hole comprises a second air exchange hole (132), the second liquid storage member (122) being exposed to the air passage and the atmosphere through the second air exchange hole (132); An air exchange cavity (40) is formed between the second liquid storage member (122) and the air passage tube (111), the air exchange cavity (40) being in communication with the second liquid storage member (122) and the second air exchange hole (132) respectively.

5. The atomizer (1) according to claim 4, characterized in that The second liquid storage member (122) is provided with a first central through hole (123), the air passage tube (111) being arranged in the first central through hole (123), the first central through hole (123) being larger in cross-sectional size than the largest cross-sectional size of the air passage tube (111), the air exchange cavity (40) being defined between the hole wall of the first central through hole (123) and the outer peripheral surface of the air passage tube (111).

6. The atomizer (1) according to claim 2, characterized in that The volume of the first liquid storage member (121) is larger than the volume of the second liquid storage member (122).

7. The atomizer (1) according to claim 1, characterized in that The atomizer (1) further comprises a first housing (41) and a first sealing member (42); The first housing (41) encloses a receiving cavity, the atomization assembly (11), the liquid storage assembly (12) and the first sealing member (42) being arranged in the receiving cavity, and the atomization assembly (11) and the liquid storage assembly (12) being located on the same side of the first sealing member (42). The first sealing member (42) is provided with a second central through hole (420), one end of the air passage pipe (111) is arranged in the second central through hole (420) and is in sealing cooperation with the hole wall surface of the second central through hole (420), and the outer periphery of the first sealing member (42) is in sealing cooperation with the inner wall surface of the first shell (41).

8. The atomizer (1) according to claim 7, characterized in that The first shell (41) comprises a shell body (411) and a bottom cover (412), and the shell body (411) and the bottom cover (412) are connected and jointly define the accommodation cavity; The outer periphery of the first sealing member (42) is in sealing cooperation with the inner wall surface of the shell body (411); The atomizer (1) further comprises a liquid absorbing member (70) for absorbing an atomized substrate, and the liquid absorbing member (70) is arranged between the first sealing member (42) and the bottom cover (412).

9. The atomizer (1) according to claim 7, characterized in that The atomizer (1) further comprises a second shell (51) and a second sealing member (52); The second shell (51) is connected with the first shell (41), the second shell (51) is formed with a liquid storage cavity (60) and an air outlet passage (64) in communication with the atmosphere, the liquid storage cavity (60) is in communication with the liquid storage member, and the air outlet passage (64) is in communication with the air passage; The second sealing member (52) is arranged between the second shell (51) and the first shell (41) and is in sealing cooperation with the second shell (51) and the first shell (41) respectively.

10. An electronic atomizing device, characterized by, The atomizer (1) comprises the atomizer (1) according to any one of claims 1 to 9 and a power supply unit (2) connected with the atomizer (1).

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