Electronic atomization device and atomizer

Abstract

The present application discloses an electronic atomization device and an atomizer. The atomizer includes: a liquid storage tank, provided with a liquid storage cavity; a base, provided with a receiving cavity and a ventilation channel, the ventilation channel is connected to the liquid storage cavity, and the ventilation channel is formed with an air inlet port on the base, the air inlet port is located on the side wall surface of the receiving cavity, and the base is arranged in the liquid storage tank; an atomizer core is arranged in the receiving cavity, and the air inlet port faces the side wall surface of the atomizer core, and there is an air inlet gap between the air inlet port and the side wall surface of the atomizer core. In the above manner, the present application can eliminate the risk of leakage from the ventilation channel in the atomizer to the atomizer cavity.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an electronic atomization device and an atomizer. Background Art

[0002] In the prior art, electronic atomization devices are mainly composed of an atomizer and a host. The atomizer generally includes a liquid storage chamber and an atomization component. The liquid storage chamber is used to store the aerosol-generating matrix, and the atomization component is used to heat and atomize the aerosol-generating matrix to form an aerosol that can be consumed by the user; the host is used to provide energy to the atomizer.

[0003] When the atomizer atomizes the aerosol generating matrix, the aerosol generating matrix is ​​consumed quickly and the air pressure in the liquid storage chamber decreases, resulting in poor liquid supply to the atomization component. As a result, the aerosol generating matrix cannot be quickly replenished to the atomization component, causing the atomization component to dry burn and overheat, thereby causing the atomization component to be damaged due to poor liquid supply, and produce burnt smell and harmful substances.

[0004] To solve the above problems, a ventilation hole is provided in the atomizer for ventilation, thereby alleviating the problem of excessive pressure drop in the liquid storage chamber and preventing the atomization component from overheating due to dry burning. The ventilation hole is connected to the liquid storage chamber, so there is a risk of leakage into the atomization chamber through the ventilation hole. Summary of the invention

[0005] The present application mainly provides an electronic atomization device and an atomizer to solve the problem of the risk of liquid leakage in the ventilation hole in the atomizer.

[0006] In order to solve the above technical problems, a technical solution adopted by the present application is to provide an atomizer. The atomizer includes: a liquid storage tank, provided with a liquid storage cavity; a base, provided with a receiving cavity and a ventilation channel, the ventilation channel is connected to the liquid storage cavity, and the ventilation channel is formed with an air inlet port on the base, the air inlet port is located on the side wall surface of the receiving cavity, and the base is arranged in the liquid storage tank; an atomizer core is arranged in the receiving cavity, and the air inlet port faces the side wall surface of the atomizer core, and there is an air inlet gap between the air inlet port and the side wall surface of the atomizer core.

[0007] In some embodiments, the distance between the air inlet port and the side wall surface of the atomizer core is greater than or equal to 1.5 mm and less than or equal to 3.5 mm.

[0008] In some embodiments, a plurality of the air inlet ports are formed on the base, and the plurality of the air inlet ports are symmetrically arranged on the base.

[0009] In some embodiments, the atomizer further includes a liquid absorbing member, which is sandwiched between the side wall surface of the accommodating cavity and the side wall surface of the atomizing core and is located below the air inlet port.

[0010] In some embodiments, the side wall surface of the accommodating cavity is further provided with an air inlet groove, the air inlet groove is connected with the air inlet port and the atmosphere, and the side wall surface of the atomizer core is sealed on the air inlet groove.

[0011] In some embodiments, the ventilation channel includes a ventilation hole and a ventilation groove arranged on the outer peripheral side wall of the base, the ventilation hole is connected to the ventilation groove, the ventilation hole is formed with the air outlet port on the end surface of the base facing the liquid storage cavity, and the air inlet port is connected to the ventilation groove, wherein the inner wall surface of the liquid storage tank is blocked on the ventilation groove.

[0012] In some embodiments, the ventilation holes are spaced apart from the outer peripheral side of the base, the ventilation groove includes a plurality of ventilation sub-grooves spaced apart along the longitudinal direction of the base, two adjacent ventilation sub-grooves are connected to each other, the ventilation sub-grooves are arranged along the circumference of the base, and at least one ventilation sub-groove is connected to at least one air inlet port.

[0013] In some embodiments, a notch is provided on the groove wall between two adjacent ventilation sub-grooves, at least two of the air inlet ports are connected to a corresponding one of the ventilation sub-grooves, and at least two of the air inlet ports are located on both sides of the notch.

[0014] In some embodiments, the outer peripheral side wall of the base is also provided with a liquid collecting groove, which connects the end of the ventilation hole away from the air outlet port and the ventilation sub-groove, wherein the width of the liquid collecting groove along the longitudinal direction of the base is greater than the width of the ventilation sub-groove along the longitudinal direction of the base.

[0015] In some embodiments, the outer peripheral side wall of the base is further provided with a side stopper, and the side stopper is arranged at two ends of the plurality of ventilation sub-grooves along the circumferential direction of the base.

[0016] In some embodiments, the base is provided with a lower liquid hole, and the lower liquid hole is connected to the liquid storage chamber; the atomizer further includes a sealing member, and the sealing member is arranged between the base and the liquid storage tank;

[0017] Wherein, a retaining wall structure is also provided on the sealing member and / or the base, and the retaining wall structure is used to prevent the bubbles entering the liquid storage cavity from the ventilation channel from entering the lower liquid hole.

[0018] In some embodiments, the sealing member includes a side wall sealing portion and an end surface covering portion, wherein the side wall sealing portion is connected to the outer peripheral side of the end surface covering portion, the side wall sealing portion is disposed between the base and the inner wall of the liquid storage tank, and the end surface covering portion covers the end surface of the base facing the liquid storage chamber;

[0019] Wherein, the retaining wall structure is arranged on the end surface covering portion and / or the end surface of the base facing the liquid storage cavity.

[0020] In some embodiments, the ventilation channel is formed with an air outlet port on the end surface of the base facing the liquid storage chamber, and the retaining wall structure includes a baffle, and the baffle is located between the lower liquid hole and the air outlet port.

[0021] In some embodiments, the ventilation channel is formed with an air outlet port on the end surface of the base facing the liquid storage chamber, and the retaining wall structure is arranged around the air outlet port or the lower liquid hole; or

[0022] The retaining wall structure is sealed on the lower liquid hole.

[0023] To solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device. The electronic atomization device comprises a host and the above-mentioned atomizer, wherein the host is connected to the atomizer and supplies power to the atomizer.

[0024] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses an electronic atomization device and an atomizer. The present application sets an air inlet port on the side wall of the accommodating chamber, and the air inlet port faces the side wall of the atomizer core, and forms an air inlet gap between the air inlet port and the side wall of the atomizer core. Even if the leaked liquid through the ventilation channel leaks from the air inlet port to the atomizer chamber, the leaked liquid will be absorbed by the atomizer core to form a liquid supply to the atomizer core due to the small air inlet gap, and finally can be atomized and consumed by the atomizer core, thereby eliminating the leakage of the ventilation channel, and at the same time further improving the utilization rate of the aerosol generating matrix in the liquid storage chamber, and effectively reducing the leakage of the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the electronic atomization device provided by the present application;

[0027] Figure 2 yes Figure 1 A schematic diagram of the structure of an atomizer in the electronic atomization device shown;

[0028] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the atomizer shown;

[0029] Figure 4 yes Figure 2 A schematic diagram of the exploded structure of the atomizer shown;

[0030] Figure 5 yes Figure 2 The schematic diagram of the structure of the atomizer without the atomization chamber is shown;

[0031] Figure 6 yes Figure 5 A schematic diagram of the axial structure of the seal in the atomizer shown;

[0032] Figure 7 yes Figure 6 A schematic diagram of the side structure of the seal shown;

[0033] Figure 8 yes Figure 6 A schematic diagram of the top view of the seal shown;

[0034] Fig. 9 yes Figure 5 A schematic diagram of the axial structure of the base in the atomizer shown;

[0035] Fig.10 yes Fig. 9 A schematic diagram of the structure of the base as viewed from above;

[0036] Fig.11 yes Fig. 9 A schematic diagram of the front view of the base shown;

[0037] Fig.12 yes Fig. 9 A schematic diagram of the side view structure of the base shown. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The terms "first", "second", "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The present application provides an electronic atomization device 300, see Figures 1 to 4 , Figure 1 is a structural schematic diagram of an embodiment of an electronic atomization device provided by the present application, Figure 2 yes Figure 1 The schematic diagram of the structure of the atomizer in the electronic atomization device shown in FIG. Figure 3 yes Figure 2 The cross-sectional structure diagram of the atomizer shown in FIG. Figure 4 yes Figure 2 Schematic diagram of the exploded structure of the atomizer shown.

[0042] The electronic atomization device 300 is used to atomize an aerosol-generating substrate when powered on to generate an aerosol, which can be used in different fields, such as drug atomization, agricultural spraying, hair spray atomization, and oil atomization, etc. The aerosol-generating substrate can be a drug solution or a nutrient solution, etc.

[0043] The electronic atomization device 300 includes a host 200 and an atomizer 100, wherein the host 200 is connected to the atomizer 100 and supplies power to the atomizer 100. The atomizer 100 is used to store an aerosol-generating substrate and atomize the aerosol-generating substrate.

[0044] Optionally, the atomizer 100 and the host 200 may be detachably connected, for example, by plugging or screwing, that is, the atomizer 100 and the host 200 may be two relatively independent components, the atomizer 100 is disposable and replaceable, and the host 200 is non-disposable, that is, the host 200 can be charged and used multiple times; the atomizer 100 may also be non-disposable and can be used multiple times after being refilled with liquid.

[0045] Optionally, the atomizer 100 and the host 200 can also be packaged together in the same housing to form an integrated electronic atomization device 300, that is, the atomizer 100 and the host 200 are non-detachably connected; this type of electronic atomization device 300 is usually disposable and can be discarded after the aerosol generating matrix is ​​exhausted.

[0046] Combined with reference Figures 3 to 5 ,in Figure 5 yes Figure 2 The schematic diagram of the structure of the atomizer without the atomization chamber is shown.

[0047] The atomizer 100 includes a liquid storage tank 10, a base 20, a sealing member 40, an atomizing core 30 and a base 50. The liquid storage tank 10 is provided with a liquid storage cavity 12, the liquid storage cavity 12 is used to store an aerosol generating matrix, the base 20 is arranged in the liquid storage tank 10, the atomizing core 30 is arranged on the base 20, and the base 50 is located on a side of the base 20 away from the liquid storage cavity 12 and connected to the liquid storage tank 10.

[0048] The base 20 is disposed in the liquid storage tank 10 . The base 20 may be disposed in the liquid storage tank 10 , or the base 20 may be spirally connected to the liquid storage tank 10 , and the base 20 blocks the liquid storage cavity 12 of the liquid storage tank 10 .

[0049] In this embodiment, the base 20 is disposed in the liquid storage bin 10 , and the base 20 is sealed by a sealing member 40 to prevent leakage. The sealing member 40 is disposed between the base 20 and the liquid storage bin 10 .

[0050] Specifically, the liquid storage tank 10 includes a shell 11 and an air outlet pipe 13. The shell 11 is a cylindrical structure with one end closed and the other end open. The air outlet pipe 13 is located in the shell 11, connected to the closed end of the shell 11 and communicated with the outside through the closed end, that is, the closed end is provided with an air outlet hole 14, and the air outlet pipe 13 is communicated with the air outlet hole 14. The user absorbs the aerosol generated in the atomizer 100 through the air outlet pipe 13 and the air outlet hole 14. The liquid storage chamber 12 is arranged between the shell 11 and the air outlet pipe 13.

[0051] The base 20 is arranged in the shell 11 from the open end of the shell 11, one end of the air outlet pipe 13 is plugged into the aerosol outlet hole 21 of the base 20, and the base 20 and the shell 11 and the air outlet pipe 13 and the aerosol outlet hole 21 are sealed to prevent liquid leakage.

[0052] like Figure 3 As shown, the base 20 is provided with a ventilation channel 22, a lower liquid hole 23 and a accommodating chamber 24. When the base 20 is arranged in the liquid storage tank 10, the ventilation channel 22 connects the liquid storage tank 10 and the atmosphere, the lower liquid hole 23 connects the liquid storage chamber 12, and the atomizer core 30 is arranged in the accommodating chamber 24 and is sealed at one end of the lower liquid hole 23 away from the liquid storage chamber 12, so that the atomizer core 30 can absorb the aerosol generating matrix through the lower liquid hole 23, and atomize and consume the aerosol generating matrix during operation to generate aerosol.

[0053] Optionally, at least part of the ventilation channel 22 has a capillary effect to prevent the aerosol-generating matrix in the liquid storage chamber 12 from leaking from the ventilation channel 22 under the driving force of its own weight. The aerosol-generating matrix in the liquid storage chamber 12 can seal the ventilation channel 22 under its own weight.

[0054] Optionally, the ventilation channel 22 is a non-capillary channel, and the seal 40 also covers the port of the ventilation channel 22 toward the liquid storage chamber 12, and when the air pressure at the port of the seal 40 toward the ventilation channel 22 is greater than the pressure on the side of the seal 40 toward the liquid storage chamber 12 to a certain value, the part of the seal 40 covering the port of the ventilation channel 22 is lifted up, thereby ventilating the liquid storage chamber 12. After the air pressure in the liquid storage chamber 12 is restored to a certain extent, the seal 40 covers the port of the ventilation channel 22 again to avoid liquid leakage through the ventilation channel 22.

[0055] The ventilation channel 22 is used to adaptively adjust the air pressure in the liquid storage chamber 12 to maintain the air pressure balance in the liquid storage chamber 12 and avoid dry burning of the atomizer core 30 due to poor liquid flow.

[0056] Specifically, when the atomizer 100 is working, the atomizer core 30 continuously consumes the aerosol-generating substrate in the liquid storage chamber 12, and the amount of the aerosol-generating substrate in the liquid storage chamber 12 decreases, resulting in a continuous decrease in the internal air pressure. If the internal air pressure decreases to a threshold value, the amount of liquid absorbed by the atomizer core 30 from the liquid storage chamber 12 will decrease, that is, the atomizer 100 does not flow liquid smoothly, the liquid supply to the atomizer core 30 is insufficient, and the atomizer core 30 is prone to dry burning and damage; and the ventilation channel 22 can introduce external air and the like into the liquid storage chamber 12 when the air pressure in the liquid storage chamber 12 decreases to a certain value to supplement the air pressure in the liquid storage chamber 12, that is, when the air pressure in the liquid storage chamber 12 decreases to a certain value, the external atmospheric pressure will drive the air and the like to enter the liquid storage chamber 12 through the ventilation channel 22, so that the ventilation channel 22 can adaptively adjust the air pressure in the liquid storage chamber 12 to avoid the atomizer core 30 from dry burning caused by the poor flow of liquid in the atomizer 100.

[0057] Continue reading Figures 3 to 5In this embodiment, a retaining wall structure 60 is further provided on the sealing member 40 and / or the base 20 , and the retaining wall structure 60 is used to prevent the bubbles that enter the liquid storage chamber 12 from the ventilation channel 22 from entering the lower liquid hole 23 .

[0058] Through a large number of tests, it has been found that when the electronic atomization device 300 is used in certain postures, such as when the electronic atomization device 300 is used horizontally, bubbles entering the liquid storage chamber 12 through the ventilation channel 22 often enter the lower liquid hole 23, and even adhere to the liquid absorption surface of the atomization core 30, affecting the lower liquid, which can easily lead to insufficient liquid supply to the atomization core 30, thereby increasing the risk of dry burning and overheating of the atomization core 30 due to insufficient liquid supply.

[0059] The ventilation channel 22 is formed with an air outlet port 221 on the end surface of the base 20 facing the liquid storage chamber 12. Since the atomizer 100 itself is relatively miniature, the air outlet port 221 is close to the lower liquid hole 23. When the electronic atomization device 300 is used horizontally, the bubbles generated by ventilation into the liquid storage chamber 12 through the air outlet port 221 are easy to enter the lower liquid hole 23. The present application provides a retaining wall structure 60 on the sealing member 40 and / or the base 20 to prevent the bubbles that enter the liquid storage chamber 12 from the ventilation channel 22 from entering the lower liquid hole 23, thereby reducing the risk of bubbles generated by ventilation entering the lower liquid hole 23.

[0060] Optionally, the seal 40 is provided with a retaining wall structure 60 , which may be a baffle or a cylindrical structure, etc. For example, the baffle is arranged between the lower liquid hole 23 and the gas outlet port 221 , or the cylindrical structure is arranged around the lower liquid hole 23 or the gas outlet port 221 .

[0061] Optionally, a retaining wall structure is provided on the base 20, for example, a retaining wall structure 60 is provided on the end surface of the base 20 facing the liquid storage chamber 12, and the retaining wall structure 60 can be a baffle arranged between the lower liquid hole 23 and the air outlet port 221, or the retaining wall structure 60 is a cylindrical structure surrounding the air outlet port 221, and a notch is provided on the seal 40 to avoid the retaining wall structure 60.

[0062] Optionally, a retaining wall structure 60 is provided on the seal 40 and the base 20 , for example, a baffle is provided on the end surface of the base 20 facing the liquid storage chamber 12 , and the seal 40 is provided with a protective cover matched with the baffle, and the baffle and the protective cover constitute the retaining wall structure 60 .

[0063] See also Figures 6 to 8 , Figure 6 yes Figure 5 The schematic diagram of the axial structure of the seal in the atomizer is shown in FIG. Figure 7 yes Figure 6 The side view of the seal is shown in FIG. Figure 8 yes Figure 6 A schematic diagram of the top view of the seal shown.

[0064] The sealing member 40 includes a side wall sealing portion 41, an end face covering portion 42 and a sleeve portion 43. The side wall sealing portion 41 is connected to the outer peripheral side of the end face covering portion 42. The end face covering portion 42 is provided with a first avoidance port 421 corresponding to the aerosol outlet hole 21, a second avoidance port 422 corresponding to the lower liquid hole 23 and a third avoidance port 423 corresponding to the air outlet port 221. The sleeve portion 43 is connected to the inner peripheral side of the second avoidance port 422 of the end face covering portion 42.

[0065] The end face covering portion 42 covers the end face of the base 20 facing the liquid storage chamber 12, the side wall sealing portion 41 is arranged between the outer peripheral side of the base 20 and the inner wall of the shell 11, and the sleeve portion 43 is arranged between the inner wall of the aerosol outlet hole 21 and the outer wall of the outlet pipe 13, so that the base 20 and the shell 11 and the outlet pipe 13 and the aerosol outlet hole 21 are all sealed.

[0066] The retaining wall structure 60 is disposed on the end surface covering portion 42 and / or the end surface of the base 20 facing the liquid storage chamber 12 .

[0067] In this embodiment, Figure 6 As shown, a retaining wall structure 60 is provided on the sealing member 40 , and the retaining wall structure 60 is arranged on a side of the end surface covering portion 42 facing the liquid storage chamber 12 , and the sealing member 40 and the retaining wall structure 60 are an integrated structural member.

[0068] Optionally, the retaining wall structure 60 may also be detachably connected to the side of the end surface covering portion 42 facing the liquid storage chamber 12 , such as by snap connection or screw connection.

[0069] like Figure 6 As shown, the retaining wall structure 60 includes a retaining plate 61, and the retaining plate 61 is located between the second avoidance opening 422 and the third avoidance opening 423; Figure 5 As shown, the baffle 61 is also located between the lower liquid hole 23 and the air outlet port 221 to prevent the bubbles that enter the liquid storage chamber 12 from the ventilation channel 22 from entering the lower liquid hole 23 .

[0070] See also Figure 7 and Figure 8 The baffle 61 is plate-shaped and has a width A and a height C, wherein the width A of the baffle 61 is at least greater than or equal to the maximum size of the outlet port 221, the height C of the baffle 61 is greater than or equal to 2.5 mm and less than or equal to 5.0 mm, and the height C of the baffle 61 is the height dimension of the baffle 61 along the axial direction of the outlet pipe 13.

[0071] Optionally, the height C of the baffle 61 may be 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm or 5.0 mm, etc.

[0072] Through research, it is found that when the height C of the baffle 61 is greater than or equal to 2.5 mm, when the atomizer 100 is placed horizontally, bubbles generated by ventilation through the ventilation channel 22 can be prevented from entering the lower liquid hole 23; when the height C of the baffle 61 is less than or equal to 5.0 mm, the amount of aerosol generating matrix blocked by the baffle 61 and retained is relatively small, which can relatively reduce the residue of aerosol generating matrix.

[0073] Furthermore, the width A of the baffle 61 is greater than or equal to the width B of the lower liquid hole 23 , and the width B of the lower liquid hole 23 is the width dimension of the end of the lower liquid hole 23 on the end surface of the base 20 facing the liquid storage chamber 12 .

[0074] In this embodiment, the gas outlet port 221, the lower liquid hole 23 and the aerosol outlet hole 21 are spaced apart along the first direction, and the width A of the baffle 61 and the width B of the lower liquid hole 23 are the width dimensions along the second direction perpendicular to the first direction.

[0075] Combined with reference Figure 3 , Figure 5 and Figure 8 When the end surface covering portion 42 covers the end surface of the base 20 facing the liquid storage chamber 12, the second avoidance opening 422 is aligned with the lower liquid hole 23, wherein the width B of the lower liquid hole 23 can be almost equal to the width of the second avoidance opening 422. Figure 8 In the figure, the width of the second avoidance opening 422 is used to replace the width B of the lower liquid hole 23 to illustrate the relationship between the width A of the baffle 61 and the width B of the lower liquid hole 23.

[0076] The width A of the baffle 61 is greater than or equal to the width B of the lower liquid hole 23 , so as to shield the lower liquid hole 23 in the first direction and reduce the risk of bubbles generated by ventilation through the ventilation channel 22 entering the lower liquid hole 23 from both sides of the baffle 61 .

[0077] In this embodiment, two opposite sides of the baffle 61 are in contact with the inner wall surface of the liquid storage tank 10, so that the baffle 61 cooperates with the inner wall surface of the liquid storage tank 10 to form a space isolated from the lower liquid hole 23, thereby eliminating the risk of bubbles generated by ventilation through the ventilation channel 22 entering the lower liquid hole 23 from both sides of the baffle 61.

[0078] Furthermore, the baffle structure 60 further includes two side baffles 62, which are respectively connected to the two side edges of the baffle plate 61, and the two side baffles 62 are located on both sides of the gas outlet port 221. The two side baffles 62 can both strengthen the support of the baffle plate 61 and prevent the bubbles generated by the ventilation through the ventilation channel 22 from entering the lower liquid hole 23.

[0079] The height of the side baffle 62 gradually increases from one end away from the baffle 61 to one end connected to the side of the baffle 61, wherein the height of the end of the side baffle 62 away from the baffle 61 is almost zero, so as to prevent the aerosol-generating matrix in the liquid storage chamber 12 from being retained in the space formed by the baffle 61 and the two side baffles 62.

[0080] In other embodiments, the retaining wall structure 60 may be cylindrical, and the retaining wall structure 60 is arranged around the air outlet port 221 or the lower liquid hole 23 to isolate the air outlet port 221 from the lower liquid hole 23 to prevent bubbles generated by ventilation through the ventilation channel 22 from entering the lower liquid hole 23; or, the retaining wall structure 60 is sealed on the lower liquid hole 23, for example, the retaining wall structure 60 is in the shape of a cover, including a cover body and an annular wall arranged around the edge of the cover body, the cover body is arranged on the lower liquid hole 23, the annular wall is arranged around the circumference of the lower liquid hole 23 to seal the lower liquid hole 23, and an opening is provided on the side of the annular wall away from the air outlet port 221, and the opening is used to connect the liquid storage chamber 12 and the lower liquid hole 23, wherein the cover body and the annular wall can both effectively block bubbles generated by ventilation through the ventilation channel 22 from entering the lower liquid hole 23.

[0081] Continue reading Figure 3 , Figure 5 and Figures 9 to 12 ,in Fig. 9 yes Figure 5 The axial structure diagram of the base in the atomizer shown in FIG. Fig.10 yes Fig. 9 The schematic diagram of the structure of the base as seen from above is shown. Fig.11 yes Fig. 9 The front view of the base is shown in FIG. Fig.12 yes Fig. 9 A schematic diagram of the side view structure of the base shown.

[0082] like Fig. 9 and Fig.10 As shown, the air exchange channel 22 is formed with an air outlet port 221 and an air inlet port 223 on the base 20, the air outlet port 221 is located at the end surface of the base 20 facing the liquid storage chamber 12, and the air inlet port 223 is located at the side wall surface of the accommodating chamber 24; when the atomizer core 30 is arranged in the accommodating chamber 24, the air inlet port 223 faces the side wall surface of the atomizer core 30, there is no obstruction between the air inlet port 223 and the side wall surface of the atomizer core 30, and there is an air inlet gap between the air inlet port 223 and the side wall surface of the atomizer core 30.

[0083] Combined with reference Figure 3 and Fig.10An atomizing chamber 25 is formed between the base 20 and the base 50, and the air inlet port 223 is connected to the atomizing chamber 25 through the air inlet gap. An air inlet hole 51 is provided on the base 50, and the air inlet hole 51 is connected to the atomizing chamber 25 and the atmosphere, that is, the outside air enters the atomizing chamber 25 through the air inlet hole 51. The atomizing surface of the atomizing core 30 is located in the atomizing chamber 25, and atomizes the aerosol generating matrix in the atomizing chamber 25 to generate an aerosol.

[0084] In the present application, the air inlet port 223 is located on the side wall of the accommodating chamber 24, and the air inlet port 223 faces the side wall of the atomizer core 30, and an air inlet gap is formed between the air inlet port 223 and the side wall of the atomizer core 30. Therefore, even if the liquid leaked through the ventilation channel 22 leaks from the air inlet port 223 to the atomizer chamber 25, due to the small air inlet gap, the leaked liquid will be absorbed by the atomizer core 30 to form a liquid supply to the atomizer core 30, and finally can be atomized and consumed by the atomizer core 30, thereby eliminating the leakage of the ventilation channel 22, and at the same time further improving the utilization rate of the aerosol generating matrix in the liquid storage chamber 12, and effectively reducing the leakage of the atomizer 100.

[0085] In this embodiment, the atomizing core 30 includes a porous matrix and a heating element disposed on the atomizing surface of the porous matrix. The porous matrix is ​​used to guide the aerosol generating matrix on one side of the liquid storage chamber 12 to the atomizing surface. The heating element generates heat to atomize the aerosol generating matrix when powered. The air inlet port 223 faces the side wall of the porous matrix. The aerosol generating matrix leaking from the air inlet port 223 is easily absorbed by the porous matrix, thereby eliminating liquid leakage.

[0086] Optionally, the atomizer core 30 may further include liquid absorbent cotton and a heating element, and the air inlet port 223 faces the side wall surface of the liquid absorbent cotton, which will not be described in detail.

[0087] The distance between the air inlet port 223 and the side wall surface of the atomizer core 30 is greater than or equal to 1.5 mm and less than or equal to 3.5 mm, that is, the size of the air inlet gap is greater than or equal to 1.5 mm and less than or equal to 3.5 mm. The air inlet gap can be 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm or 3.5 mm, etc.

[0088] If the air intake gap is less than 1.5 mm, the ventilation efficiency of the ventilation channel 22 will be affected; if the air intake gap is greater than 3.5 mm, the distance between the air intake port 223 and the side wall surface of the atomization core 30 will be larger. On the one hand, the volume of the atomization chamber 25 is larger, and eddy currents are easily generated in the atomization chamber 25, which has an adverse effect on the atomization efficiency and aerosol generation rate of the atomization core 30. On the other hand, the aerosol generation matrix leaked through the air intake port 223 is easy to flow into the atomization chamber 25 along the side wall surface of the accommodating chamber 24, forming liquid leakage.

[0089] Therefore, the air intake gap is greater than or equal to 1.5 mm and less than or equal to 3.5 mm, which can not only maintain a good ventilation efficiency, but also effectively guide the aerosol-generating matrix leaking from the air intake port 223 to the atomization core 30 to avoid liquid leakage.

[0090] The number of ventilation channels 22 can be one or more, for example, the number of ventilation channels 22 can be one, two or three. Providing multiple ventilation channels 22 can further improve the ventilation reliability of the atomizer 100, and avoid that after one of the ventilation channels 22 is blocked by liquid, the remaining ventilation channels 22 can still work normally.

[0091] The number of air inlet ports 223 of a ventilation channel 22 can be one or more, for example, the number of air inlet ports 223 can be one, two, three, four or five, which can be set at any position of the side wall surface of the accommodating cavity 24. Multiple air inlet ports 223 can improve the ventilation efficiency and reduce the risk of the ventilation channel 22 being blocked.

[0092] In this embodiment, a plurality of air inlet ports 223 are formed on the base 20 and are symmetrically arranged on the base 20 to optimize the air flow state in the atomizing chamber 25 and reduce the risk of vortex formation in the atomizing chamber 25 during ventilation.

[0093] Optionally, the atomizer 100 may further include a liquid absorbing member (not shown), which is sandwiched between the side wall surface of the accommodating cavity 24 and the side wall surface of the atomizing core 30 and is located below the air inlet port 223 , wherein the below is the direction of the base 20 away from the liquid storage cavity 12 .

[0094] The liquid absorbing member may be a liquid absorbing cotton or a porous matrix, etc., which is used to guide the liquid leaking from the air inlet port 223 to the atomizer core 30, so that the atomizer core 30 absorbs the liquid leaking from the air inlet port 223, thereby improving the reliability of the atomizer core 30 absorbing the leaked liquid, and further reducing the risk of the leaked liquid leaking into the atomizer chamber 25.

[0095] Optionally, the side wall surface of the accommodating chamber 24 is further provided with an air inlet groove (not shown), which connects the air inlet port 223 and the atomizing chamber 25, and the atomizing chamber 25 is connected to the atmosphere. The side wall surface of the atomizing core 30 is sealed on the air inlet groove, so that the liquid leaking from the air inlet port 223 will enter the air inlet groove and can be guided to the side wall surface of the atomizing core 30 along the side wall of the air inlet groove, which is beneficial to further improve the reliability of the atomizing core 30 in absorbing the leaked liquid.

[0096] like Fig. 9As shown, in this embodiment, the ventilation channel 22 includes a ventilation hole 224 and a ventilation groove 225 arranged on the outer peripheral side wall of the base 20, the ventilation hole 224 is connected to the ventilation groove 225, the ventilation hole 224 is formed with an outlet port 221 on the end face of the base 20 facing the liquid storage chamber 12, and the air inlet port 223 is connected to the ventilation groove 225, wherein the inner wall surface of the liquid storage tank 10 is blocked on the ventilation groove 225.

[0097] At least part of the ventilation holes 224 is a capillary groove, so as to prevent the aerosol-generating substrate in the liquid storage chamber 12 from reaching the ventilation groove 225 through the ventilation holes 224 .

[0098] The ventilation groove 225 is arranged on the outer peripheral side wall of the base 20, and it can be arranged along a certain direction, for example, it is arranged along the circumference of the base 20, or it is arranged along the longitudinal direction, or it can also be arranged in a circuitous manner. The inner wall surface of the liquid storage tank 10 is blocked on the ventilation groove 225, so that the ventilation groove 225 can only lead to the atomization chamber 25 through the air inlet port 223.

[0099] When the liquid storage chamber 12 is ventilated, the air flow enters the liquid storage chamber 12 through the ventilation groove 225 and the ventilation hole 224. The ventilation groove 225 can collect the leaked liquid entering from the liquid storage chamber 12 through the ventilation hole 224. The leaked liquid encounters resistance in the ventilation groove 225, so that the ventilation groove 225 can slow down the tendency of the leaked liquid to leak outward.

[0100] In this embodiment, Fig. 9 As shown, the ventilation holes 224 are spaced apart from the outer peripheral side of the base 20, and the ventilation groove 225 includes a plurality of ventilation sub-grooves 226 spaced apart along the longitudinal direction of the base 20, and two adjacent ventilation sub-grooves 226 are connected to each other, and the ventilation sub-grooves 226 are arranged along the circumference of the base 20, and at least one ventilation sub-groove 226 is connected to at least one air inlet port 223, wherein the longitudinal direction of the base 20 is a direction perpendicular to the circumference of the base 20, that is, the longitudinal direction of the base 20 is in the same direction as the axial direction of the outlet pipe 13.

[0101] Specifically, the outer side wall of the base 20 is provided with two opposite guide grooves 222, which connect the aerosol outlet hole 21 and the atomization chamber 25, and the two guide grooves 222 divide the outer side wall of the base 20 into two spaced parts, one of which is provided with the multiple ventilation sub-grooves 226, and the multiple ventilation sub-grooves 226 are distributed throughout the part not blocked by the seal 40, and the other part is provided with a plurality of liquid absorption grooves 27 connected to the atomization chamber 25 to absorb condensed liquid condensed on the wall of the base 20.

[0102] In this embodiment, one ventilation channel 22 is provided on the base 20 ; in other embodiments, two ventilation channels 22 may be provided on the base 20 , and the two ventilation channels 22 are respectively provided on two parts of the outer peripheral side wall of the base 20 .

[0103] The ventilation groove 225 is provided with a plurality of ventilation sub-grooves 226 spaced apart in the longitudinal direction of the base 20 to increase the length of the ventilation groove 225 , thereby improving the liquid storage capacity of the ventilation groove 225 and reducing liquid leakage.

[0104] like Fig.11 and Fig.12 As shown, the outer side wall of the base 20 is also provided with a side stop 227, and the side stop 227 is arranged at both ends of the multiple ventilation sub-grooves 226 along the circumference of the base 20, so that after the ventilation groove 225 is covered on the inner wall surface of the liquid storage tank 10, the ventilation groove 225 can only be connected to the atomization chamber 25 through the air inlet port 223, thereby preventing liquid from leaking from the gap between the ventilation groove 225 and the inner wall surface of the liquid storage tank 10.

[0105] At least one ventilation sub-groove 226 is connected to at least one air inlet port 223, that is, there is at least one ventilation sub-groove 226 connected to at least one air inlet port 223, for example, only one ventilation sub-groove 226 is connected to one or two equal numbers of air inlet ports 223, or there are two ventilation sub-grooves 226 that are connected to two air inlet ports 223.

[0106] A notch 228 is provided on the groove wall between two adjacent ventilation sub-grooves 226, and at least two air inlet ports 223 are connected to a corresponding ventilation sub-groove 226, and the at least two air inlet ports 223 are located on both sides of the notch 228 to avoid the occurrence of a situation where ventilation or drainage cannot be achieved due to blockage of the air inlet port 223 or the ventilation sub-groove 226 on one side, so as to increase the ventilation and drainage reliability of the atomizer 100.

[0107] In this embodiment, there are four ventilation sub-grooves 226 , wherein two ventilation sub-grooves 226 close to the base 50 are connected to two air inlet ports 223 , and the two air inlet ports 223 are located on both sides of the notch 228 .

[0108] like Fig. 9 and Fig.11 As shown, the outer side wall of the base 20 is also provided with a liquid collecting groove 229, which connects the end of the ventilation hole 224 away from the air outlet port 221 and the ventilation sub-groove 226, wherein the width of the liquid collecting groove 229 along the longitudinal direction of the base 20 is greater than the width of the ventilation sub-groove 226 along the longitudinal direction of the base 20, so that under the cover of the inner wall surface of the liquid storage tank 10, the liquid collecting groove 229 can collect the leaked liquid flowing from the ventilation hole 224 to the ventilation sub-groove 226, so as to reduce the risk of leakage of the aerosol generating matrix.

[0109] Specifically, the width of the liquid collecting groove 229 in the longitudinal direction spans across two ventilation sub-grooves 226 adjacent to the liquid storage chamber 12, and the liquid collecting groove 229 is only connected to the ventilation sub-grooves 226 closest to the liquid storage chamber 12, that is, the other parts of the liquid collecting groove 229 that extend beyond the ventilation sub-grooves 226 can collect the leaked liquid from the ventilation holes 224.

[0110] like Figures 3 to 5 As shown, the base 50 is detachably connected to the base 20, and the base 50 is also in contact with one end of the atomizer core 30 away from the liquid storage chamber 12 to support and fix the atomizer core 30, wherein a sealing gasket is also provided between the atomizer core 30 and the base 20 to prevent leakage at the connection between the atomizer core 30 and the base 20.

[0111] A sealing ring 70 is also provided between the base 50 and the base 20. The sealing ring 70 is elastic, thereby preventing leakage between the base 50 and the base 20 and the inner wall surface of the liquid storage tank 10, and giving elasticity to the connection between the base 50 and the base 20 to avoid loosening of the connection between the base 50 and the base 20.

[0112] Furthermore, part of the base 50 is also disposed in the liquid storage bin 10 , or the base 50 is snap-connected to the liquid storage bin 10 , and the base 50 is sealed to the open end of the liquid storage bin 10 .

[0113] The base 50 is also provided with an electrode hole, and the electrode 71 is arranged to penetrate through the electrode hole and is electrically connected to the heating element on the atomization core 30 . The electrode 71 is also used to be electrically connected to the host 200 .

[0114] The base 50 is further provided with a magnetic member 72 , which may be a ferromagnet or a permanent magnet, for magnetically connecting to the host 200 .

[0115] Different from the prior art, the present application discloses an electronic atomization device and an atomizer. The present application sets an air inlet port on the side wall of the accommodating cavity, and the air inlet port faces the side wall of the atomizer core, and forms an air inlet gap between the air inlet port and the side wall of the atomizer core. Even if the liquid leaking through the ventilation channel leaks from the air inlet port to the atomizer cavity, the leaking liquid will be absorbed by the atomizer core to form a liquid supply to the atomizer core due to the small air inlet gap, and finally can be atomized and consumed by the atomizer core, thereby eliminating the leakage of the ventilation channel, and at the same time further improving the utilization rate of the aerosol generating matrix in the liquid storage cavity, and effectively reducing the leakage of the atomizer.

[0116] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer, characterized in that: The atomizer comprises: A liquid storage tank is provided with a liquid storage cavity; the liquid storage tank comprises a shell and an air outlet pipe located in the shell, and the liquid storage cavity is arranged between the shell and the air outlet pipe; A base, provided with a containing cavity and a ventilation channel, wherein the ventilation channel is connected to the liquid storage cavity, and the ventilation channel is formed with an air inlet port on the base, and the air inlet port is located on the side wall of the containing cavity, and the base is arranged in the liquid storage tank; The atomizer core is arranged in the accommodating cavity, and the air inlet port faces the side wall surface of the atomizer core, and an air inlet gap is provided between the air inlet port and the side wall surface of the atomizer core.

2. The atomizer according to claim 1, characterized in that The distance between the air inlet port and the side wall surface of the atomizer core is greater than or equal to 1.5 mm and less than or equal to 3.5 mm.

3. The atomizer according to claim 1, characterized in that A plurality of the air inlet ports are formed on the base, and the plurality of the air inlet ports are symmetrically arranged on the base.

4. The atomizer according to claim 1, characterized in that The atomizer further comprises a liquid absorbing member, which is sandwiched between the side wall surface of the accommodating cavity and the side wall surface of the atomizing core and is located below the air inlet port.

5. The atomizer according to claim 1, characterized in that The side wall surface of the accommodating cavity is also provided with an air inlet groove, the air inlet groove is connected with the air inlet port and the atmosphere, and the side wall surface of the atomizing core is sealed on the air inlet groove.

6. The atomizer according to claim 1, characterized in that The ventilation channel includes a ventilation hole and a ventilation groove arranged on the outer peripheral side wall of the base, the ventilation hole is connected to the ventilation groove, the ventilation hole is formed with an air outlet port on the end surface of the base facing the liquid storage cavity, and the air inlet port is connected to the ventilation groove, wherein the inner wall surface of the liquid storage tank is blocked on the ventilation groove.

7. The atomizer according to claim 6, characterized in that The ventilation holes are spaced apart from the outer peripheral side of the base, the ventilation groove includes a plurality of ventilation sub-grooves spaced apart along the longitudinal direction of the base, two adjacent ventilation sub-grooves are connected to each other, the ventilation sub-grooves are arranged along the circumference of the base, and at least one ventilation sub-groove is connected to at least one air inlet port.

8. The atomizer according to claim 7, characterized in that A notch is provided on the groove wall between two adjacent ventilation sub-grooves, at least two of the air inlet ports are connected to a corresponding one of the ventilation sub-grooves, and at least two of the air inlet ports are located on both sides of the notch.

9. The atomizer according to claim 7, characterized in that The outer peripheral side wall of the base is also provided with a liquid collecting groove, which connects the end of the ventilation hole away from the air outlet port and the ventilation sub-groove, wherein the width of the liquid collecting groove along the longitudinal direction of the base is greater than the width of the ventilation sub-groove along the longitudinal direction of the base.

10. The atomizer according to claim 7, characterized in that The outer peripheral side wall of the base is further provided with a side stopper, and the side stopper is arranged at two ends of the plurality of ventilation sub-grooves along the circumferential direction of the base.

11. The atomizer according to claim 1, characterized in that The base is provided with a lower liquid hole, and the lower liquid hole is connected to the liquid storage chamber; the atomizer also includes a sealing member, and the sealing member is arranged between the base and the liquid storage bin; Wherein, a retaining wall structure is also provided on the sealing member and / or the base, and the retaining wall structure is used to prevent the bubbles entering the liquid storage cavity from the ventilation channel from entering the lower liquid hole.

12. The atomizer according to claim 11, characterized in that The sealing member comprises a side wall sealing portion and an end surface covering portion, wherein the side wall sealing portion is connected to the outer peripheral side of the end surface covering portion, the side wall sealing portion is arranged between the base and the inner wall of the liquid storage tank, and the end surface covering portion covers the end surface of the base facing the liquid storage chamber; Wherein, the retaining wall structure is arranged on the end surface covering portion and / or the end surface of the base facing the liquid storage cavity.

13. The atomizer according to claim 12, characterized in that The ventilation channel is formed with an air outlet port on the end surface of the base facing the liquid storage cavity, and the baffle structure includes a baffle plate, which is located between the lower liquid hole and the air outlet port.

14. The atomizer according to claim 12, characterized in that The ventilation channel is formed with an air outlet port on the end surface of the base facing the liquid storage cavity, and the retaining wall structure is arranged around the air outlet port or the lower liquid hole; or The retaining wall structure is sealed on the lower liquid hole.

15. An electronic atomization device, characterized in that: The electronic atomization device comprises a host and an atomizer according to any one of claims 1 to 14, wherein the host is connected to the atomizer and supplies power to the atomizer.

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