Atomization bomb and electronic atomization device

Abstract

The utility model provides an atomization bomb and an electronic atomization device. The atomization bomb comprises a bin body and a piston assembly. Wherein the bin body is provided with an accommodating cavity; the piston assembly is arranged in the containing cavity and can slide relative to the containing cavity. The piston assembly is matched with the containing cavity to form a liquid storage cavity. The piston assembly comprises a rigid supporting piece and a flexible sealing piece arranged on the outer side of the rigid supporting piece in a sleeving mode. Wherein the rigid supporting piece is used for supporting the flexible sealing piece; the flexible sealing element is in interference fit with the accommodating cavity; the piston assembly is configured to slide bidirectionally in the bin body in the axis direction of the bin body under the action of external force. The piston assembly in the atomization bomb can repeatedly slide in the containing cavity and keep interference fit with the containing cavity at the same time, so that repeated utilization of the atomization bomb is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, in particular to an atomization bomb and an electronic atomization device. Background Art

[0002] In the prior art, some electronic atomization devices, such as facial oxygen injection devices, medical atomizers, etc., use an atomization element to atomize an aerosol-generating substrate to generate an aerosol. In some schemes, an active liquid supply method can be used to push the aerosol-generating substrate into the atomization element.

[0003] The piston-type atomizing cartridge can actively supply liquid to the atomizing element. However, the existing piston-type atomizing cartridge cannot be reused, which increases the user's cost. Utility Model Content

[0004] The atomizer cartridge and electronic atomizer device provided in the present application are intended to solve the problem that existing piston-type atomizer cartridges cannot be reused.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is to provide an atomizing bomb, comprising:

[0006] A bin body having a receiving cavity;

[0007] A piston assembly is disposed in the accommodating cavity and is slidable relative to the accommodating cavity; the piston assembly cooperates with the accommodating cavity to form a liquid storage cavity; the piston assembly comprises a rigid support member and a flexible sealing member sleeved on the outer side of the rigid support member;

[0008] Wherein, the rigid support member is used to support the flexible seal; the flexible seal is interference fit with the accommodating cavity; and the piston assembly is configured to be able to slide bidirectionally in the hopper body along the axial direction of the hopper body under the action of external force.

[0009] In a specific embodiment, the rigid support member comprises:

[0010] A support portion, wherein the flexible sealing member is sleeved on the outside of the support portion; the flexible sealing member only covers the side wall of the support portion, and the top surface of the support portion facing the liquid storage chamber is exposed;

[0011] The guide portion is arranged at one end of the support portion away from the liquid storage cavity and is fixedly connected to the support portion.

[0012] In a specific embodiment, one end of the flexible seal facing away from the liquid storage cavity abuts against the guide portion; and a first end surface of the flexible seal facing the liquid storage cavity is flush with the top surface of the support portion.

[0013] In a specific embodiment, the outer diameter of the guide portion is equal to the inner diameter of the chamber body.

[0014] In a specific embodiment, the ratio of the radius of the top surface in the radial direction of the cartridge body to the width of the first end surface in the radial direction of the cartridge body is greater than or equal to 2 and less than or equal to 3.5.

[0015] and / or

[0016] The ratio of the length of the flexible seal in the axial direction to the length of the guiding portion in the axial direction is greater than or equal to 1.2 and less than or equal to 1.8. In a specific embodiment, the radius of the top surface in the radial direction is greater than or equal to 17 mm and less than or equal to 19 mm; and / or, the length of the flexible seal in the axial direction is greater than or equal to 7.3 mm and less than or equal to 8.3 mm.

[0017] In a specific embodiment, it further includes:

[0018] An isolation film disposed on the surface of the piston assembly facing the liquid storage cavity; wherein, the material of the isolation film is at least one of HDPE, PP, and PET.

[0019] In a specific embodiment, the circumferential edge of the isolation film is spaced from the inner side wall of the cartridge body; and the isolation film covers the top surface of the support portion and a part of the first end surface close to the top surface in the radial direction of the cartridge body.

[0020] In a specific embodiment, the thickness of the isolation film in the axial direction is greater than or equal to 0.3 mm and less than or equal to 0.6 mm.

[0021] In a specific embodiment, the flexible seal has a limiting protrusion, and the limiting protrusion extends from the inner side wall of the flexible seal towards the axis of the flexible seal; the support member has a limiting groove, and the limiting groove extends from the side wall of the support member towards the axis of the support member; the limiting protrusion is embedded in the limiting groove to cooperate with fixing the relative positions of the flexible seal and the support member;

[0022] The flexible seal has an annular limiting groove, and the annular limiting groove extends from the inner side wall of the flexible seal towards a direction away from the axis; the support member has an annular limiting flange, and the annular limiting flange extends from the side wall surface of the support member towards a direction away from the axis; the annular limiting flange is embedded in the annular limiting groove to cooperate with fixing the relative positions of the flexible seal and the support member.

[0023] To solve the above technical problems, another technical solution adopted by the present application is: to provide an electronic atomization device, including:

[0024] A housing;

[0025] An atomizing cartridge, disposed within the housing, the atomizing cartridge being the atomizing cartridge described in any one of the above;

[0026] A driving mechanism, disposed within the housing and connected to the piston assembly; the driving mechanism is configured to push and / or pull the piston assembly of the atomizing cartridge to slide bidirectionally along the axis of the cartridge body within the cartridge body.

[0027] An atomizing module, the atomizing module being in communication with the liquid storage chamber within the atomizing cartridge.

[0028] Advantages of the embodiments of the present application: Different from the prior art, the present application provides an atomizing cartridge and an electronic atomizing device; the atomizing cartridge includes a cartridge body and a piston assembly; wherein, the cartridge body has a receiving cavity; the piston assembly is disposed within the receiving cavity and is slidable relative to the receiving cavity; the piston assembly and the receiving cavity cooperate to form a liquid storage chamber; the piston assembly includes a rigid support member and a flexible sealing member sleeved outside the rigid support member; wherein, the rigid support member is used to support the flexible sealing member; the flexible sealing member is in interference fit with the receiving cavity; the piston assembly is configured to be able to slide bidirectionally along the axis of the cartridge body within the cartridge body under the action of an external force. By providing a rigid support member inside the flexible sealing member of the piston assembly, the rigidity of the piston assembly is enhanced to avoid the piston assembly getting stuck or skewed during secondary use; at the same time, the rigid support member can also enhance the rigidity of the piston assembly in the radial direction to avoid the piston assembly shrinking under the pressure of the cartridge body during secondary use; thus, the piston assembly can repeatedly slide within the receiving cavity while maintaining an interference fit with the receiving cavity to achieve the reuse of the atomizing cartridge. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of an atomizing cartridge provided by the first embodiment of the present application;

[0030] Figure 2 is Figure 1 an exploded schematic diagram of the structure shown;

[0031] Figure 3a is Figure 1 a cross-sectional view of the atomizing cartridge shown along line A-A;

[0032] Figure 3b is Figure 3a a cross-sectional view of the cartridge body in the structure shown;

[0033] Figure 4 is Figure 1 a schematic structural diagram of the piston assembly in the atomizing cartridge shown;

[0034] Figure 5a is Figure 4 a schematic structural diagram of the flexible sealing member in the piston assembly shown;

[0035] Figure 5b is Figure 5a A cross-sectional view along line B-B;

[0036] Figure 6 is Figure 4 A schematic structural view of the support member in the piston assembly shown;

[0037] Figure 7 A cross-sectional view of the atomizing cartridge provided by the second embodiment of the present application;

[0038] Figure 8 A schematic structural diagram of an electronic atomizing device provided by an embodiment of the present application.

[0039] Explanation of the reference numerals in the drawings:

[0040] 100 - housing; 200 - atomizing cartridge; 300 - driving mechanism; 400 - atomizing module; 500 - air supply unit; 600 - power supply assembly; 1 - cartridge body; 2 - piston assembly; 3 - isolation film; 10 - accommodating cavity; 11 - liquid storage cavity; 12 - liquid outlet hole; 13 - through hole; 21 - rigid support member; 22 - flexible seal; 210 - top surface; 220 - first end face; 211 - support portion; 212 - guiding portion; 213 - limiting groove; 214 - annular limiting flange; 221 - limiting bump; 222 - annular limiting groove. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0042] The terms "first", "second", and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0043] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0044] The following provides a detailed description of this application in conjunction with the drawings and embodiments.

[0045] Refer to Figures 1 - 3a ; Figure 1 It is a schematic structural diagram of an atomizing cartridge provided for the first embodiment of this application; Figure 2 is Figure 1 an exploded schematic diagram of the structure shown; Figure 3a is Figure 1 a cross-sectional view of the atomizing cartridge shown along line A-A; Figure 3b is Figure 3a a cross-sectional view of the cartridge body in the structure shown. This application provides an atomizing cartridge 200, which can be a piston-type atomizing cartridge and can be used to store and provide an aerosol-forming substrate; specifically, as Figure 2 shown, the atomizing cartridge 200 may include a cartridge body 1 and a piston assembly 2.

[0046] As Figure 3b shown, wherein, the cartridge body 1 has a receiving cavity 10 for receiving the piston assembly 2 and the aerosol-forming substrate; in combination with Figure 3a, the piston assembly 2 is arranged in the accommodating chamber 10 and is slidable relative to the accommodating chamber 10. The piston assembly 2 cooperates with the accommodating chamber 10 to form a liquid storage chamber 11; specifically, the piston assembly 2 may include a rigid support member 21 and a flexible seal member 22 sleeved on the outside of the rigid support member 21; wherein the rigid support member 21 is used to support the flexible seal member 22 so that the circumferential edge of the flexible seal member 22 can be interference fit with the accommodating chamber 10, so that the accommodating chamber 10 is divided into two isolated spaces by the piston assembly 2. Furthermore, a flange is also provided on the side wall of the flexible seal member 22 to achieve interference fit between the circumferential edge of the flexible seal member 22 and the accommodating chamber 10. The piston assembly 2 is configured to be able to slide in both directions in the silo body 1 along the axial direction X of the silo body 1 under the action of an external force; it can be understood that the volume of the liquid storage chamber 11 is related to the position of the piston assembly 2 in the accommodating chamber 10.

[0047] In this way, by arranging a rigid support member 21 on the inner side of the flexible seal 22 of the piston assembly 2, the rigidity of the piston assembly 2 can be enhanced to prevent the piston assembly 2 from getting stuck or tilted during the secondary use; at the same time, the rigid support member 21 can also enhance the rigidity of the piston assembly 2 along the radial direction Y to prevent the piston assembly 2 from shrinking due to the pressure of the chamber body 1 during the secondary use; in this way, the piston assembly 2 can repeatedly slide in the accommodating chamber 10 while maintaining an interference fit with the accommodating chamber 10, so as to realize the reuse of the atomizer bomb 200, and the atomizer bomb 200 can be reused at least 30 times.

[0048] Combination Figure 3a and Figure 3b In a specific embodiment, the chamber body 1 further has a liquid outlet 12; the liquid outlet 12 is arranged on the top wall of one end of the chamber body 1 along the axial direction X, so as to connect the outside with the liquid storage chamber 11. The end of the liquid storage chamber 11 away from the liquid outlet 12 has a through hole 13, and the initial position of the piston assembly 2 is arranged close to the through hole 13; and the piston assembly 2 is configured to be able to slide in the accommodating chamber 10 toward the direction close to the liquid outlet 12 to reduce the volume of the liquid storage chamber 11, so that the aerosol generating matrix in the liquid storage chamber 11 can be pushed out of the chamber body 1 through the liquid outlet 12 under the squeezing of the piston assembly 2.

[0049] Continue reading Figure 3aIn a specific embodiment, the rigid support member 21 may include a support portion 211 and a guide portion 212. The support portion 211 is disposed on the side of the rigid support member 21 facing the liquid storage chamber 11, and the flexible seal 22 is sleeved on the outside of the support portion 211; the support portion 211 is used to support the flexible seal 22 to prevent the flexible seal 22 from shrinking inward toward the axis when the piston assembly 2 moves in the accommodating chamber 10, causing leakage. Specifically, the flexible seal 22 only covers the side wall of the support portion 211, and the top surface 210 of the support portion 211 facing the liquid storage chamber 11 is exposed; the top surface 210 of the support portion 211 and the end surface of the flexible seal 22 facing the liquid outlet 12 are together with the accommodating chamber 10 to form the liquid storage chamber 11, and the top surface 210 of the support portion 211 is in direct contact with the aerosol generating matrix.

[0050] The guide portion 212 is disposed at one end of the support portion 211 away from the liquid storage chamber 11 and is fixedly connected to the support portion 211, and the guide portion 212 is coaxially disposed with the support portion 211; in this embodiment, preferably, the guide portion 212 and the support portion 211 can be integrally formed. Specifically, the outer diameter of the guide portion 212 is equal to the inner diameter of the chamber body 1, and is used to guide the piston assembly 2; that is, the guide portion 212 is used to fix the relative position of the piston assembly 2 and the chamber body 1 along the radial direction Y, so as to prevent the piston assembly 2 from tilting and causing leakage.

[0051] Specifically, along the radial direction Y, the size of the guide portion 212 is larger than the size of the support portion 211, so that the guide portion 212 can provide support for the flexible seal 22 sleeved on the outside of the support portion 211, thereby pushing the flexible seal 22. Further, one end of the flexible seal 22 away from the liquid storage chamber 11 abuts against the side of the guide portion 212 facing the liquid storage chamber 11, so that when the rigid support 21 moves toward the liquid outlet 12 under the action of an external force, the guide portion 212 can promptly push the flexible seal 22.

[0052] Furthermore, the first end surface 220 of the flexible sealing member 22 facing the liquid storage chamber 11 is flush with the top surface 210 of the support portion 211; so that the shape of the liquid storage chamber 11 formed by the first end surface 220 and the top surface 210 of the support portion 211 and the accommodating chamber 10 is more regular, thereby reducing the aerosol-generating matrix remaining in the liquid storage chamber 11 after the single atomizing cartridge 200 is used, saving the user's use cost. It should be noted that the "flush" mentioned above specifically refers to the circumferential edge of the top surface 210 of the support portion 211 being flush with the edge of the first end surface 220 close to the top surface 210 of the support portion 211; the top surface 210 of the support portion 211 can be a convex surface facing the liquid storage chamber 11 to further reduce the residual aerosol-generating matrix.

[0053] Of course, in other embodiments, the first end surface 220 may also be lower or higher than the top surface 210 of the support portion 211 to reduce the difficulty of the manufacturing process.

[0054] Refer to Figure 4 , Figure 4 as Figure 1 the schematic structural view of the piston assembly in the atomizing cartridge shown. In a specific embodiment, the ratio of the radius r of the top surface 210 of the rigid support 21 in the radial direction Y to the width d of the first end surface 220 in the radial direction Y is greater than or equal to 2 and less than or equal to 3.5; so that the rigidity of the piston assembly 2 can meet the requirements of repeated use, and the atomizing cartridge 200 can be reused 30 times. For example, the ratio of the radius r of the top surface 210 of the rigid support 21 in the radial direction Y to the width d of the first end surface 220 in the radial direction Y can be any value among 2, 2.4, 2.8, 3.2 or 3.5.

[0055] It can be understood that if the ratio of the radius r of the top surface 210 of the rigid support 21 in the radial direction Y to the width d of the first end surface 220 in the radial direction Y is too small, the supporting effect of the rigid support 21 on the flexible seal 22 is poor, and the overall rigidity of the piston assembly 2 is too small, which may lead to a reduction in the number of times the atomizing cartridge 200 can be reused. If the ratio is too large, the overall rigidity of the piston assembly 2 is too large, which may cause difficulty in pushing the aerosol-forming substrate and affect the normal operation of the electronic atomization device.

[0056] Wherein, the radius r of the top surface 210 in the radial direction Y is greater than or equal to 17 mm and less than or equal to 19 mm; so that while the overall size of the atomizing cartridge 200 is suitable for existing electronic atomization devices, the ratio of r to d meets the above requirements. For example, the radius r of the top surface 210 in the radial direction Y can be any value among 17 mm, 17.5 mm, 18 mm, 18.5 mm or 19 mm.

[0057] As Figure 4 shown, the ratio of the length a of the flexible seal 22 in the axial direction X to the length b of the guiding portion 212 in the axial direction X is greater than or equal to 1.2 and less than or equal to 1.8; to prevent the piston assembly 2 from skewing during sliding, resulting in liquid leakage, and effectively enhancing the sealing effect of the piston assembly 2. For example, the ratio of the length a of the flexible seal 22 in the axial direction X to the length b of the guiding portion 212 in the axial direction X can be any value among 1.2, 1.4, 1.5, 1.6 or 1.8.

[0058] It can be understood that if the ratio of the length a of the flexible seal 22 in the axial direction X to the length b of the guiding portion 212 in the axial direction X is too small, the overall length of the piston assembly 2 is smaller, and it is easy to skew during sliding, resulting in liquid leakage; if the ratio is too large, the overall length of the piston assembly 2 is too large, which will cause the volume of the liquid storage cavity 11 to decrease, affecting the liquid storage capacity of the atomizing cartridge 200.

[0059] Among them, the length a of the flexible seal 22 in the axial direction X is greater than or equal to 7.3 mm and less than or equal to 8.3 mm; while making the overall size of the atomizing cartridge 200 suitable for the existing electronic atomizing device, the ratio of a to b meets the above requirements. For example, the length a of the flexible seal 22 in the axial direction X can be any value among 7.3 mm, 7.5 mm, 7.8 mm, 8.0 mm or 8.3 mm.

[0060] Specifically, refer to Figures 5a - 6 , Figure 5a which is Figure 4 a schematic structural view of the flexible seal in the piston assembly shown; Figure 5b which is Figure 5a a sectional view along line B-B; Figure 6 which is Figure 4 a schematic structural view of the rigid support 21 in the piston assembly shown. As Figure 5a shown, the flexible seal 22 has a limit bump 221, and the limit bump 221 extends from the inner side wall of the flexible seal 22 towards the axis of the flexible seal 22. Specifically, the number of the limit bumps 221 can be four, and the four limit bumps 221 are arranged at intervals along the circumferential direction of the inner wall of the flexible seal 22 to form a cross-shaped through groove around the axis, so that the rigid support 21 is sleeved inside the flexible seal 22 through the cross-shaped through groove.

[0061] As Figure 6 shown, the rigid support 21 has a limit groove 213, and the limit groove 213 extends from the side wall of the rigid support 21 towards the axis of the rigid support 21. Specifically, the number of the limit grooves 213 can also be four, and the four limit grooves 213 are arranged at intervals on the side wall of the rigid support 21; the limit bumps 221 of the flexible seal 22 are respectively embedded into the limit grooves 213 to cooperate and fix the relative positions of the flexible seal 22 and the rigid support 21 in the axial direction X. In this way, when the rigid support 21 slides in the direction away from the liquid outlet hole 12 under the action of an external force, the rigid support 21 can drive the flexible seal 22 to slide in the direction away from the liquid outlet hole 12 at the same time, so as to realize the reuse of the atomizing cartridge 200. Of course, in some other embodiments, the number of the limit bumps 221 and the limit grooves 213 can also be one, two, three, five, etc., as long as the number of the limit bumps 221 and the limit grooves 213 matches.

[0062] Furthermore, as Figure 5bAs shown, the flexible seal 22 further has an annular limiting groove 222, and the annular limiting groove 222 extends from the inner side wall of the flexible seal 22 in a direction away from the axis; correspondingly, the rigid support 21 has an annular limiting flange 214, and the annular limiting flange 214 extends from the side wall surface of the rigid support 21 in a direction away from the axis. The annular limiting flange 214 is embedded in the annular limiting groove 222 to further fix the relative position of the flexible seal 22 and the rigid support 21 in the axial direction, so that the rigid support 21 can drive the flexible seal 22 to slide away from the liquid outlet hole 12 at the same time, thereby realizing the reuse of the atomization cartridge 200.

[0063] Specifically, the material of the rigid support 21 can be polyethylene terephthalate-1,4-cyclohexanedimethanol ester (PETG) to meet the rigidity requirements of the rigid support 21; the material of the flexible seal 22 can be thermoplastic rubber (TPE).

[0064] Refer to Figure 7 , Figure 7 is a cross-sectional view of the atomization cartridge provided in the second embodiment of the present application. The structure of the atomization cartridge 200 provided in the second embodiment of the present application is basically the same as the structure of the atomization cartridge 200 provided in the first embodiment of the present application. The difference is that the atomization cartridge 200 provided in the second embodiment of the present application may further include a separator film 3. Specifically, the separator film 3 is disposed on the surface of the piston assembly 2 facing the liquid storage cavity 11 to separate the aerosol generating matrix in the liquid storage cavity 11 from the piston assembly 2, thereby avoiding the situation that the piston assembly 2 has an adverse effect on the aerosol generating matrix, such as precipitating chemical substances or causing the aerosol generating matrix to change color and causing harm to the skin. Preferably, the separator film 3 is adhered to the surface of the piston assembly 2 to avoid the situation that the separator film 3 falls off during the sliding process of the piston assembly 2. Specifically, the material of the separator film 3 can be at least one of high density polyethylene (HDPE, High Density Polyethylene), polypropylene (PP, polypropylene), and polyethylene terephthalate (PET, Polyethylene terephthalate). The above materials are all inert materials that will not cause color change and precipitation, and can effectively expand the filling range of skin care product varieties.

[0065] Further, the circumferential edge of the isolation film 3 is spaced from the inner wall of the cartridge body 1 to prevent friction between the inner wall of the cartridge body 1 and the isolation film 3 in the piston, which may damage the isolation film 3. Specifically, the isolation film 3 may cover the top surface 210 of the support portion 211 and a part of the first end surface 220 near the top surface 210 in the radial direction of the cartridge body 1; that is, on the surface of the piston assembly 2 facing the liquid storage cavity 11, the isolation film 3 extends from the axis of the piston assembly 2 in the radial direction Y to the first end surface 220 of the flexible seal 22. In this way, the isolation film 3 can cover the gap between the rigid support 21 and the flexible seal 22 to prevent the aerosol-forming matrix from entering the interior of the piston assembly 2.

[0066] Wherein, the thickness h of the isolation film 3 in the axial direction X is greater than or equal to 0.3 mm and less than or equal to 0.6 mm; while ensuring the isolation effect of the isolation film 3, the volume of the liquid storage cavity 11 is not affected as much as possible. For example, the thickness h of the isolation film 3 in the axial direction X can be any value among 0.3 mm, 0.4 mm, 0.5 mm, and 0.6 mm.

[0067] The present application provides an atomizing cartridge; the atomizing cartridge 200 includes a cartridge body 1 and a piston assembly 2; wherein, the cartridge body 1 has a receiving cavity 10; the piston assembly 2 is disposed in the receiving cavity 10 and is slidable relative to the receiving cavity 10; the piston assembly 2 and the receiving cavity 10 cooperate to form a liquid storage cavity 11; the piston assembly 2 includes a rigid support 21 and a flexible seal 22 sleeved outside the rigid support 21; wherein, the rigid support 21 is used to support the flexible seal 22; the flexible seal 22 is in interference fit with the receiving cavity 10; the piston assembly 2 is configured to be able to slide bidirectionally along the axis of the cartridge body 1 in the cartridge body 1 under the action of an external force. By arranging the rigid support 21 inside the flexible seal 22 of the piston assembly 2, the rigidity of the piston assembly 2 is enhanced to prevent the piston assembly 2 from getting stuck or skewed during secondary use; at the same time, the rigid support 21 can also enhance the radial rigidity of the piston assembly 2 to prevent the piston assembly 2 from shrinking under the pressure of the cartridge body 1 during secondary use; in this way, the piston assembly 2 can repeatedly slide in the receiving cavity 10 while maintaining an interference fit with the receiving cavity 10 to achieve the repeated use of the atomizing cartridge 200.

[0068] Refer to Figure 8 , Figure 8Schematic diagram of the structure of an electronic atomization device provided by an embodiment of the present application; the present application also provides an electronic atomization device for atomizing an aerosol-generating substrate to form an aerosol. The electronic atomization device can be applied to fields such as medical treatment, beauty, and agriculture, and the aerosol-generating substrate can include but is not limited to liquid medicine, nutrient solution, beauty liquid, essence, essence milk, disinfectant, insecticide, pesticide. Among them, the electronic atomization device can include a housing 100, an atomization cartridge 200, a driving mechanism 300, and an atomization module 400.

[0069] Among them, the atomization cartridge 200 is the atomization cartridge 200 provided by any of the above embodiments; specifically, the atomization cartridge 200 is arranged in the housing 100 and is used to store the aerosol-generating substrate. The atomization module 400 is connected to the liquid storage cavity 11 in the atomization cartridge 200 and is used to atomize the aerosol-generating substrate transmitted from the liquid storage cavity 11 to generate an aerosol. Specifically, the atomization module 400 is connected to the liquid storage cavity 11 through the liquid outlet hole 12, and the aerosol-generating substrate is pushed from the liquid storage cavity 11 to the atomization module 400 through the liquid outlet hole 12 under the extrusion of the piston assembly 2; the atomization module 400 has a spray port for outputting the aerosol, so that the aerosol generated in the atomization module 400 can be used by the user.

[0070] In a specific embodiment, the atomization module 400 can be at least partially located outside the housing 100; or, the atomization module 400 is arranged in the housing 100. And when the atomization module 400 is arranged in the housing 100, the housing 100 also has a relief hole, and the spray port of the atomization module 400 is exposed through the relief hole, so that the aerosol generated in the atomization module 400 can be discharged through the relief hole for the user to use.

[0071] The electronic atomization device can also include a gas supply unit (not shown in the figure), and the gas supply unit 500 is connected to the atomization module 400 and is used to supply external gas to the atomization module 400. Specifically, the gas supply unit 500 can supply high-pressure gas to the atomization module 400, and the high-pressure gas can shear the aerosol-generating substrate entering the atomization module 400 into atomized particles with appropriate particle sizes, that is, aerosol, and carry the aerosol out from the spray port. Among them, the gas supply unit 500 can be an air pump.

[0072] Of course, in some other embodiments, the atomization module 400 can also include an atomization element (not shown in the figure), and the atomization element is used to atomize the aerosol-generating substrate to form an aerosol. Among them, the atomization element can be an ultrasonic atomization element, an electrothermal atomization element, a two-phase flow atomization nozzle, etc. in the prior art. Specifically, in an embodiment of the present application, the atomization element adopted is a two-phase flow atomization nozzle, that is, an aerosol is generated by the interaction of a high-speed gas and a liquid.

[0073] The driving mechanism 300 is disposed within the housing 100 and is connected to the piston assembly 2; the driving mechanism 300 is configured to push and / or pull the piston assembly 2 of the atomization cartridge 200 to slide bidirectionally along the axial direction of the cartridge body 1 within the cartridge body 1. Specifically, in combination with Figure 4 , a connection structure 2120 is provided on a side of the guiding portion 212 facing away from the supporting portion 211, and the driving mechanism 300 can be detachably connected to the piston assembly 2 through the connection structure 2120. In a state where the piston assembly 2 is connected to the driving mechanism 300, the driving mechanism 300 can push the piston assembly 2 towards the liquid outlet hole 12 to push the aerosol-forming substrate to the atomization module 400; the driving mechanism 300 can also pull back the piston assembly 2, so that the liquid storage cavity 11 can be refilled, enabling the atomization cartridge 200 to be reused.

[0074] Of course, the electronic atomization device may further include a power supply assembly 600 for supplying power to each structural component of the electronic atomization device, and its structure is the same as or similar to that of the power supply assembly in the prior art. For details, reference can be made to the prior art and will not be elaborated here.

[0075] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An atomizing bomb, characterized in that: include: A bin body having a receiving cavity; A piston assembly is disposed in the accommodating cavity and is slidable relative to the accommodating cavity; the piston assembly cooperates with the accommodating cavity to form a liquid storage cavity; the piston assembly comprises a rigid support member and a flexible sealing member sleeved on the outer side of the rigid support member; Wherein, the rigid support member is used to support the flexible seal; the flexible seal is interference fit with the accommodating cavity; and the piston assembly is configured to be able to slide bidirectionally in the hopper body along the axial direction of the hopper body under the action of external force.

2. The atomizing bomb according to claim 1, characterized in that: The rigid support member comprises: A support portion, wherein the flexible sealing member is sleeved on the outside of the support portion; the flexible sealing member only covers the side wall of the support portion, and the top surface of the support portion facing the liquid storage chamber is exposed; The guide portion is arranged at one end of the support portion away from the liquid storage cavity and is fixedly connected to the support portion.

3. The atomizing bomb according to claim 2, characterized in that: One end of the flexible seal facing away from the liquid storage cavity abuts against the guide portion; a first end surface of the flexible seal facing the liquid storage cavity is flush with the top surface of the support portion.

4. The atomizing bomb according to claim 2, characterized in that: The outer diameter of the guide portion is equal to the inner diameter of the bin body.

5. The atomizing bomb according to claim 4, characterized in that: The ratio of the radius of the top surface along the radial direction of the silo body to the width of the first end surface of the liquid storage cavity along the radial direction of the silo body is greater than or equal to 2 and less than or equal to 3.5; and / or A ratio of a length of the flexible seal along the axial direction to a length of the guide portion along the axial direction is greater than or equal to 1.2 and less than or equal to 1.

8.

6. The atomizing bomb according to claim 2 or 3, characterized in that: Also includes: The isolation membrane is arranged on a side surface of the piston assembly facing the liquid storage chamber; wherein the material of the isolation membrane is at least one of HDPE, PP, and PET.

7. The atomizing bomb according to claim 6, characterized in that: The circumferential edge of the isolation membrane is spaced apart from the inner side wall of the bin body; and the isolation membrane covers the top surface of the support portion and a portion of the first end surface of the liquid storage cavity close to the top surface along the radial direction of the bin body.

8. The atomizing bomb according to claim 6, characterized in that: The thickness of the isolation film along the axial direction is greater than or equal to 0.3 mm and less than or equal to 0.6 mm.

9. The atomizing bomb according to claim 2, characterized in that: The flexible seal has a limiting protrusion, and the limiting protrusion extends from the inner side wall of the flexible seal to the axis of the flexible seal; the support has a limiting groove, and the limiting groove extends from the side wall of the support to the axis of the support; the limiting protrusion is embedded in the limiting groove to cooperate and fix the relative positions of the flexible seal and the support; The flexible seal has an annular limiting groove, and the annular limiting groove extends from the inner side wall of the flexible seal in a direction away from the axis; The support member has an annular limiting flange, which extends from the side wall surface of the support member in a direction away from the axis; the annular limiting flange is embedded in the annular limiting groove to cooperate and fix the relative positions of the flexible sealing member and the support member.

10. An electronic atomization device, characterized in that: include: case; An atomizing bomb, disposed in the housing, wherein the atomizing bomb is the atomizing bomb according to any one of claims 1 to 9; A driving mechanism is disposed in the housing and connected to the piston assembly; the driving mechanism is used to push and / or pull the piston assembly of the atomizer bomb to slide bidirectionally in the chamber body along the axis direction of the chamber body; An atomization module is connected to the liquid storage chamber in the atomization bomb.

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