A liquid-leakage-proof cigarette cartridge and electronic atomization device

Abstract

The application discloses a liquid leakage prevention cartridge and an electronic atomization device, which comprises a shell, an atomization assembly and a pressure regulating assembly. The shell is formed with a liquid storage bin. The atomization assembly is used for atomizing the atomization substrate of the liquid storage bin, and the atomization assembly is provided with an opening hole communicated with the liquid storage bin. The pressure regulating assembly is connected with the opening hole. The displacement and / or deformation of the pressure regulating assembly can regulate the air pressure in the liquid storage bin, so that the liquid leakage caused by the air expansion impact on the sealing area in the cartridge can be avoided. Meanwhile, the phenomenon that the liquid in the liquid storage bin is consumed and the atomization core is dry-burned due to the lack of liquid supplement can also be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to a liquid leakage-proof cigarette cartridge and an electronic atomization device. Background Art

[0002] Electronic atomizers primarily consist of a cartridge, which atomizes the atomizable matrix, and a power supply assembly, which powers the atomizer. Under high temperature and pressure, the air in the cartridge's liquid reservoir expands, impacting the cartridge's primary seal, the center tube seal, and the seal area where the ceramic core micropores directly contact the liquid reservoir. This impact is particularly severe on the silicone ventilation slots in heating elements that utilize silicone heating elements for ventilation, potentially causing multiple or even massive leaks. Summary of the Invention

[0003] In view of this, the present invention provides a leak-proof cigarette cartridge and an electronic atomization device to solve the problem of multiple leaks or even large amounts of leaks in the cigarette cartridge in the prior art.

[0004] In order to solve the above technical problems, the first technical solution provided by the present invention is: to provide a leak-proof cigarette cartridge, comprising: a shell, an atomizer assembly and a pressure regulating assembly; the shell is formed with a liquid storage tank; the atomizer assembly is used to atomize the atomizer matrix of the liquid storage tank, and the atomizer assembly is provided with an opening connected to the liquid storage tank; the pressure regulating assembly is connected to the opening, and the air pressure in the liquid storage tank is regulated by the displacement and / or deformation of the pressure regulating assembly.

[0005] Wherein, the pressure regulating component includes an elastomer or an elastic member.

[0006] Wherein, the pressure regulating assembly includes a piston and an elastic member.

[0007] Wherein, the pressure regulating component is arranged in the opening.

[0008] Among them, when the air pressure in the liquid storage tank increases, the piston slides in the direction away from the liquid storage tank and causes the elastic member to undergo elastic deformation to adjust the air pressure in the liquid storage tank; as the air pressure in the liquid storage tank decreases, the piston slides in the direction close to the liquid storage tank under the action of the elastic member to adjust the air pressure in the liquid storage tank.

[0009] Wherein, the pressure regulating component is an elastomer, and the elastomer is arranged in the opening.

[0010] The elastic body contracts in a direction away from the liquid storage tank as the air pressure in the liquid storage tank increases, and expands in a direction close to the liquid storage tank as the air pressure in the liquid storage tank decreases, so as to adjust the air pressure in the liquid storage tank.

[0011] Wherein, the elastic body is a cylinder, and the side wall of the cylinder is provided with spaced annular recesses.

[0012] Wherein, the pressure regulating component is an elastic membrane, and the elastic membrane covers the opening where the opening is connected to the liquid storage tank.

[0013] Wherein, the elastic membrane is integrally arranged at the opening where the opening is connected to the liquid storage tank.

[0014] Among them, the elastic membrane elastically deforms in the direction away from the liquid storage tank as the air pressure in the liquid storage tank increases, thereby increasing the spatial volume of the liquid storage tank; and elastically deforms in the direction close to the liquid storage tank as the air pressure in the liquid storage tank decreases, thereby reducing the spatial volume of the liquid storage tank.

[0015] Wherein, the pressure regulating component is a hollow elastic body, which is connected to the opening and is located in the liquid storage tank; one end of the hollow elastic body is arranged at the opening connecting the opening and the liquid storage tank.

[0016] The hollow elastic body contracts as the air pressure in the liquid storage tank increases, thereby increasing the spatial volume of the liquid storage tank; and expands as the air pressure in the liquid storage tank decreases, thereby decreasing the spatial volume of the liquid storage tank.

[0017] Wherein, the hollow elastic body is a hollow silicone tube; one end of the hollow silicone tube is connected to the opening, and the end of the hollow silicone tube away from the opening is in a closed state.

[0018] Wherein, the hollow elastic body is integrally arranged at the opening where the opening is connected to the liquid storage tank.

[0019] In order to solve the above technical problems, the present invention provides a second technical solution: providing an electronic atomization device, including a cigarette cartridge and a power supply component for powering the cigarette cartridge, wherein the cigarette cartridge is any of the above-mentioned leak-proof cigarette cartridges.

[0020] Beneficial effects of the present invention: Different from the prior art, the present invention provides an opening in the atomizer assembly and connects the pressure-regulating assembly to the opening. This allows the gas inside the liquid storage tank to expand under high temperature and high pressure conditions. The displacement and / or deformation of the pressure-regulating assembly increases the volume of the liquid storage tank, thereby achieving pressure relief in the liquid storage tank. Pressure relief reduces or prevents the impact of the internal pressure of the liquid storage tank on the directly contacting sealing area, thereby preventing liquid leakage. When the temperature and pressure in the liquid storage tank return to normal, the pressure-regulating assembly returns to its original state. At the same time, the liquid in the liquid storage tank is consumed. When the liquid cannot be replenished, the internal pressure of the liquid storage tank decreases. By adjusting the volume of the liquid storage tank by the pressure-regulating assembly, the occurrence of dry burning of the atomizer core can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a first embodiment of a liquid leakage-proof cigarette cartridge provided by the present invention;

[0023] Figure 2 Schematic diagram of the structural changes before and after pressure relief of the first embodiment of the anti-leakage cigarette cartridge provided by the present invention;

[0024] Figure 3 This is a schematic structural diagram of a second embodiment of a liquid leakage-proof cigarette cartridge provided by the present invention;

[0025] Figure 4 This is a schematic diagram of the structural changes before and after pressure relief of the second embodiment of the anti-leakage cigarette cartridge provided by the present invention;

[0026] Figure 5 2 is a schematic structural diagram of a third embodiment of a liquid leakage-proof cigarette cartridge provided by the present invention;

[0027] Figure 6 2 is a schematic diagram of the structural changes before and after pressure relief of the third embodiment of the anti-leakage cigarette cartridge provided by the present invention;

[0028] Figure 7 2 is a schematic structural diagram of a fourth embodiment of a liquid leakage-proof cigarette cartridge provided by the present invention;

[0029] Figure 8 2 is a schematic diagram of the structural changes of the fourth embodiment of the anti-leakage cigarette cartridge provided by the present invention before and after pressure relief;

[0030] Figure 9 It is a structural schematic diagram of the electronic atomization device provided by the present invention. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below with reference to the accompanying drawings and examples. It is particularly noted that the following examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Similarly, the following examples are only some embodiments of the present invention and are not intended to be all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative effort are intended to fall within the scope of protection of the present invention.

[0032] The terms "first," "second," and "third" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of the present invention, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusions. 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 include steps or units that are not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] See also Figure 1 , is a structural diagram of the first embodiment of the anti-leakage cigarette cartridge 1 provided by the present invention.

[0035] The leak-proof cigarette cartridge 1 provided by the present invention includes: a housing 40, which is formed with a liquid storage tank 20; an atomizer assembly 10 for atomizing the atomizing matrix of the liquid storage tank 20, and an opening is provided on the atomizer assembly 10 to communicate with the liquid storage tank 20; the atomizer assembly 10 includes an atomizer seat 11 and an atomizer core 12 arranged on the atomizer seat 11, and the atomizer seat 11 has an opening 111; a pressure regulating assembly 30 is connected to the opening 111, and the air pressure in the liquid storage tank 20 is regulated by the displacement and / or deformation of the pressure regulating assembly 30. The pressure regulating assembly 30 includes an elastomer or elastic member. The pressure regulating assembly 30 is arranged at or near the connection between the opening 111 and the liquid storage tank 20.

[0036] The pressure regulating assembly 30 can be arranged in the opening 111; the pressure regulating assembly 30 can also be arranged at the opening where the opening 111 is connected to the liquid storage tank 20; the pressure regulating assembly 30 can also be arranged in the liquid storage tank 20, but one end of the pressure regulating assembly 30 is arranged at the opening where the opening 111 is connected to the liquid storage tank 20. The design is carried out according to needs and this application does not limit this.

[0037] The pressure regulating assembly 30 isolates the opening 111 and the liquid storage tank 20 from each other. The opening 111 and the pressure regulating assembly 30 define a pressure regulating space. The pressure regulating assembly 30 adjusts the volume of the pressure regulating space to adjust the air pressure in the liquid storage tank 20.

[0038] The atomizer seat 11 is a supporting structure for the atomizer core 12. The atomizer core 12 arranged on the atomizer seat 11 includes a heating element and an atomizer body. The heating element atomizes the liquid to be atomized that flows from the liquid storage tank 20 into the atomizer body for use by the user. The liquid storage tank 20 can be made of plastic, aluminum, stainless steel or other materials, as long as it can store the liquid to be atomized and does not react with it to cause it to deteriorate. The shape and size of the liquid storage tank 20 are not limited and can be designed as needed. The atomizer seat 11 can be made of plastic, silicone, ceramic, stainless steel or other alloys, as long as it can play a supporting role. The shape and size of the atomizer seat 11 are not limited and can be designed as needed.

[0039] The pressure regulating assembly 30 adjusts the size of the pressure regulating space, and further adjusts the size of the space in the liquid storage tank 20, thereby achieving regulation of the air pressure in the liquid storage tank 20. For example, when the cigarette cartridge 1 is in a high temperature and high pressure state, the gas in the liquid storage tank 20 expands outward, and the pressure regulating assembly 30 slides or elastically contracts in a direction away from the liquid storage tank 20, causing the volume of the pressure regulating space to decrease, thereby increasing the volume of the liquid storage tank 20, reducing the pressure of the gas on the atomizer seat 11 and the seal of the atomizer seat 11 and the inner wall of the liquid storage tank 20, achieving pressure relief, and avoiding the occurrence of liquid leakage. For another example, when the cigarette cartridge 1 is in a normal working state, due to the consumption of liquid in the liquid storage tank 20 and the failure to replenish the liquid in time, the air pressure in the liquid storage tank 20 decreases, and the pressure regulating assembly 30 slides or elastically expands in a direction close to the liquid storage tank 20, causing the volume of the pressure regulating space to increase, thereby decreasing the volume of the liquid storage tank 20, and avoiding the phenomenon of dry burning of the atomizer core.

[0040] The atomizer seat 11 includes an atomizer upper seat and an atomizer base. When the opening 111 is set on the atomizer upper seat, the opening 111 is formed by a blind hole. When the opening 111 extends through the atomizer upper seat to the atomizer base and does not pass through the atomizer base, the opening 111 is formed by a blind hole; if it passes through the atomizer base, the opening 111 is formed by a through hole. The opening 111 formed by a blind hole or a through hole is cylindrical. The extension direction of the blind hole or through hole can be perpendicular to the atomizer seat 11, or it can form a certain angle with the atomizer seat 11. Preferably, the extension direction of the blind hole or through hole is perpendicular to the atomizer seat 11. The cross-section of the opening 111 can be other shapes such as circular, square or triangular, preferably circular. The through hole or blind hole forming the opening 111 can extend in a straight direction or in a non-linear direction, preferably in a straight direction. The size of the opening 111 is designed according to the size of the atomizer seat 11 and as needed, and the present invention is not limited to this.

[0041] When the perforation 111 is formed by a through hole arranged on the atomizing seat 11, the perforation 111 is communicated with the atomizing assembly 10, that is, the pressure regulating space is communicated with the atomizing assembly 10, and because the atomizing assembly 10 is communicated with the external atmosphere, or is communicated with the external atmosphere through the air inlet provided, the gas pressure in the liquid storage tank 20 is in a state of equilibrium with the external atmospheric pressure by sliding, elastic contraction or expansion of the pressure regulating assembly 30. When the perforation 111 is formed by a blind hole arranged on the atomizing seat 11, the gas pressure in the liquid storage tank 20 is in a state of equilibrium with the gas pressure in the pressure regulating space and the elastic force of the pressure regulating assembly 30 by sliding, elastic contraction or expansion of the pressure regulating assembly 30. The pressure regulating space formed when the perforation 111 is a through hole can realize constant pressure regulation compared to the pressure regulating space formed when the perforation 111 is a blind hole, which is more conducive to pressure relief in the liquid storage tank 20.

[0042] In the first embodiment, the pressure regulating assembly 30 includes a piston 31 and an elastic member 32. The pressure regulating assembly 30 is disposed within the opening 111, which is a cylindrical through-hole extending perpendicularly to the atomizer seat 11. The piston 31 can slide relative to the inner wall of the opening 111 along the direction of the cylindrical through-hole, and the elastic member 32 can expand and contract along the direction of the cylindrical through-hole. The elastic member 32 is disposed at the end of the piston 31 away from the liquid reservoir 20.

[0043] A limiter is provided at the connection between the opening 111 and the liquid storage tank 20 to ensure that the piston 31 does not fall out of the opening 111. The piston 31 includes a piston body 311 and a protrusion 312. The protrusion 312 is provided at the end of the piston body 311 away from the liquid storage tank 20. The piston body 311 and the protrusion 312 are both cylindrical, and the cross-sectional diameter of the protrusion 312 is smaller than the cross-sectional diameter of the piston body 311; the protrusion 312 can also be a columnar object with a square or other shape in cross section, as long as the cross-sectional size of the protrusion 312 is smaller than the cross-sectional size of the piston body 311. The outer diameter of the piston body 311 is smaller than the inner diameter of the opening 111, so that the piston 31 can slide along the inner wall of the opening 111. The elastic member 32 is sleeved on the protrusion 312 and one end of the elastic member 32 is fixed to the piston body 311. When the opening 111 is formed by a through hole, the other end of the elastic member 32 is fixed to the connection between the opening 111 and the atomizer assembly 10 or to a limit member on the inner wall of the opening 111 close to the atomizer assembly 10; when the opening 111 is formed by a blind hole, the other end of the elastic member 32 is fixed to the bottom of the opening 111.

[0044] The elastic member 32 is provided so that when the air pressure in the liquid storage tank 20 decreases, the piston 31 can slide toward the liquid storage tank 20 by utilizing the elastic member 32's ability to recover its original shape after elastic deformation. The piston 31 can be made of plastic, metal, or other lightweight materials so that the elastic member 32 can drive the piston 31 to slide. The elastic member 32 can be a spring or other elastically deformable and recoverable object, which is not limited in the present invention.

[0045] It can be understood that when the opening 111 is formed by a through hole, the pressure regulating assembly 30 is a piston 31 and can slide relative to the inner wall of the opening 111, and the elastic member 32 can also be omitted. The opening 111 is formed by a through hole, the pressure regulating space is connected to the atomizing assembly 10, and the atomizing assembly 10 is connected to the external atmosphere, and the piston 31 slides on the inner wall of the opening 111 under the action of the pressure difference between the internal air pressure of the liquid storage tank 20 and the external atmospheric pressure. The piston 31 can be made of plastic, metal or other lightweight materials, so that the piston 31 can slide on the inner wall of the opening 111 under the action of the pressure difference between the internal air pressure of the liquid storage tank 20 and the external atmospheric pressure, thereby achieving the regulation of the internal air pressure of the liquid storage tank 20, and the present invention is not limited to this.

[0046] Furthermore, a seal 313 may be provided between the piston 31 and the inner wall of the opening 111 to prevent the liquid inside the liquid storage tank 20 from leaking into the opening 111 and affecting the regulation of the air pressure in the liquid storage tank 20 by the pressure regulating assembly 30 .

[0047] See also Figure 2 , is a schematic diagram of the structural changes before and after pressure relief of the first embodiment of the anti-leakage cigarette cartridge 1 provided by the present invention.

[0048] Under normal temperature and pressure, the internal space volume of the liquid storage chamber 20 is V1. When the inside of the cartridge 1 is at high temperature and high pressure, the gas inside the liquid storage chamber 20 expands, and the volume of the expanded gas is V2 (V2 > V1). The piston 31 is impacted by the air pressure caused by the gas expansion, and slides away from the liquid storage chamber 20 as the air pressure inside the liquid storage chamber 20 increases. At the same time, the elastic member 32 undergoes elastic deformation. After the piston 31 stops sliding, the space volume of the pressure regulating space decreases by V3, and correspondingly, the space volume of the liquid storage chamber 20 increases by V3. When V1 + V3 = V2, the air pressure inside the liquid storage chamber 20 reaches equilibrium, and the expanded gas no longer impacts the various sealed areas and the inner wall of the liquid storage chamber 20; when V1 + V3 < V2, the gas pressure inside the liquid storage chamber 20 decreases, reducing the impact on the various sealed areas and the inner wall of the liquid storage chamber 20, and preventing liquid leakage. When the temperature and pressure inside the liquid storage chamber 20 return to the normal state, the air pressure inside the liquid storage chamber 20 decreases, the gas pressure exerted on the piston 31 from one side of the liquid storage chamber 20 decreases, and under the action of the elastic member 32, the piston 31 slides towards the liquid storage chamber 20, the space volume of the pressure regulating space increases, and the space volume inside the liquid storage chamber 20 decreases correspondingly, increasing the air pressure inside the liquid storage chamber 20.

[0049] It can be understood that the piston 31 is impacted by the air pressure caused by the gas expansion inside the liquid storage chamber 20 and slides away from the liquid storage chamber 20. When the pressure regulating component 30 includes the piston 31 and the elastic member 32, the piston 31 stops sliding when the air pressure inside the liquid storage chamber 20, the air pressure inside the pressure regulating space, and the elastic force of the elastic member 32 reach a balanced state; when the pressure regulating component 30 includes the piston 31 and the elastic member 32 is omitted, the piston 31 stops sliding when the air pressure inside the liquid storage chamber 20 and the air pressure inside the pressure regulating space reach a balanced state.

[0050] As the liquid inside the liquid storage chamber 20 decreases, the gas pressure inside the liquid storage chamber 20 decreases, and the piston 31 slides towards the liquid storage chamber 20 under the action of the elastic member 32 as the gas pressure inside the liquid storage chamber 20 decreases, so as to increase the space volume of the pressure regulating space, decrease the space volume of the liquid storage chamber 20, increase the air pressure, and prevent the atomization core from dry burning due to lack of liquid replenishment, generating a burnt smell and affecting the user experience.

[0051] Please refer to Figure 3 and Figure 4 , Figure 3 which are the schematic structural diagrams of the second embodiment of the anti-leakage cartridge 1 provided by the present invention, Figure 4 and are the schematic diagrams of the structural changes before and after pressure relief of the second embodiment of the anti-leakage cartridge 1 provided by the present invention.

[0052] In the second embodiment, the pressure-regulating assembly 30 is an elastomer disposed within the opening 111, which can be formed as a through hole or a blind hole. The pressure-regulating assembly 30 can contract and expand within the opening 111. The elastomer is cylindrical, and the sidewalls of the cylinder are provided with spaced annular recesses. The cross-section of the annular recesses can be triangular or have other shapes that meet the requirements for compression of the elastomer, and this is not limited to this invention.

[0053] When the air pressure in the liquid storage tank 20 increases, the pressure regulating assembly 30 undergoes elastic deformation and shrinks in the direction away from the liquid storage tank 20, the spatial volume of the pressure regulating space decreases, and the spatial volume of the liquid storage tank 20 increases accordingly; when the air pressure in the liquid storage tank 20 decreases, the pressure regulating assembly 30 uses the elastic deformation of the elastomer to restore its original state to expand in the direction close to the liquid storage tank 20, the spatial volume of the pressure regulating space increases, and the spatial volume of the liquid storage tank 20 decreases accordingly to restore to the factory state. The elastomer can be made of rubber or other materials. It only needs to satisfy the requirement that the elastomer can shrink as the air pressure in the liquid storage tank 20 increases and expand as the air pressure in the liquid storage tank 20 decreases, so as to achieve the regulation of the air pressure in the liquid storage tank 20. The present invention does not limit this. In this embodiment, the pressure relief principle is the same as that of the first embodiment and will not be repeated here.

[0054] See also Figure 5 , is a structural diagram of the third embodiment of the anti-leakage cigarette cartridge 1 provided by the present invention.

[0055] In the third embodiment, the pressure regulating component 30 is an elastic membrane, which covers the opening where the opening 111 is connected to the liquid storage tank 20. The elastic membrane elastically deforms in a direction away from the liquid storage tank 20 as the air pressure in the liquid storage tank 20 increases, and elastically deforms in a direction toward the liquid storage tank 20 as the air pressure in the liquid storage tank 20 decreases.

[0056] The elastic membrane is integrally provided at the opening where the opening 111 is connected to the liquid storage tank 20 . During the production process, the elastic membrane and the atomizer seat 11 are integrally processed and directly fixed together by pressing or other means.

[0057] The opening 111 can be formed by a through hole or a blind hole provided in the atomizer base 11. The elastic membrane can be fixed to the inner wall of the opening 111 or to the inner wall of the liquid storage tank 20, and only needs to cover the opening where the opening 111 and the liquid storage tank 20 meet. The elastic membrane can be made of a material such as rubber that has elastic deformation and can return to its original shape. It only needs to be able to contract or expand with changes in the internal air pressure of the liquid storage tank 20, and this is not limited by the present invention.

[0058] The elastic membrane can be circular, irregular or of other shapes, as long as it can isolate the opening 111 and the liquid storage chamber 20; the elastic membrane can be made of rubber, silica gel or other materials, as long as it can undergo elastic deformation and recover its original shape; the thickness of the elastic membrane is appropriate, capable of meeting the required elastic deformation and not being easily broken.

[0059] Please refer to Figure 6 , which is a schematic diagram of the structural changes before and after pressure relief in the third embodiment of the leak-proof e-cigarette cartridge provided by the present invention.

[0060] Under normal temperature and pressure, the internal space volume of the liquid storage chamber 20 is V1. When the inside of the e-cigarette cartridge 1 is at high temperature and high pressure, the gas inside the liquid storage chamber 20 expands, and the volume of the expanded gas is V2 (V2 > V1). The elastic membrane is subjected to the air pressure impact caused by the gas expansion, and undergoes elastic deformation in the direction away from the liquid storage chamber 20 as the air pressure in the liquid storage chamber 20 increases. The space volume of the pressure regulating space decreases. After the air pressure in the pressure regulating space and the liquid storage chamber 20 reaches equilibrium, the space volume of the pressure regulating space decreases by V3, and correspondingly, the space volume of the liquid storage chamber 20 increases by V3. When V1 + V3 = V2, the gas inside the liquid storage chamber 20 reaches equilibrium, and the expanded gas no longer impacts the inner wall and each sealing area of the liquid storage chamber 20; when V1 + V3 < V2, the gas pressure inside the liquid storage chamber 20 decreases, reducing the impact on the inner wall and each sealing area of the liquid storage chamber 20 and avoiding liquid leakage. When the temperature and pressure inside the liquid storage chamber 20 return to the normal state, the gas pressure on the elastic membrane decreases, and the elastic membrane expands in the direction close to the liquid storage chamber 20 as the air pressure in the liquid storage chamber 20 decreases until it resumes its original shape. The space volume of the pressure regulating space increases, and the space volume of the liquid storage chamber 20 decreases to the factory state.

[0061] As the liquid inside the liquid storage chamber 20 decreases, the gas pressure inside the liquid storage chamber 20 decreases, and the elastic membrane undergoes elastic deformation in the direction close to the liquid storage chamber 20 as the gas pressure in the liquid storage chamber 20 decreases, so as to increase the space volume of the pressure regulating space, reduce the space volume of the liquid storage chamber 20, increase the air pressure, and avoid the atomizing core from dry burning due to lack of liquid replenishment, generating a burnt smell and affecting the user experience.

[0062] Please refer to Figure 7 , which is a schematic diagram of the structure of the fourth embodiment of the leak-proof e-cigarette cartridge 1 provided by the present invention.

[0063] In the fourth embodiment, the pressure regulating component 30 is a hollow elastic body. The hollow elastic body is connected to the opening 111 and isolates the pressure regulating space from the liquid storage chamber 20. The hollow elastic body contracts as the air pressure in the liquid storage chamber 20 increases and expands as the air pressure in the liquid storage chamber 20 decreases. The hollow elastic body is located inside the liquid storage chamber 20, and one end of the hollow elastic body is arranged at the opening where the opening 111 is connected to the liquid storage chamber 20.

[0064] The hollow elastic body is integrally arranged at the opening where the opening 111 is connected to the liquid storage chamber 20. During the production and processing process, the hollow elastic body is integrally processed with the atomization base 11 and is directly fixed together by pressing or other means.

[0065] Among them, the opening 111 can be formed by a through hole or a blind hole provided on the atomization base 11. One end of the hollow elastic body is communicated with the opening 111, and the end of the hollow elastic body far away from the opening 111 is in a closed state. The end of the hollow elastic body communicated with the opening 111 can be fixed on the inner wall of the opening 111 or on the inner wall of the liquid storage chamber 20, as long as the opening at the connection between the opening 111 and the liquid storage chamber 20 is covered. The hollow elastic body can be a hollow silica gel tube or a hollow silica gel ball. The present invention does not limit the shape and material of the hollow elastic body, as long as it satisfies that the hollow elastic body can contract as the air pressure in the liquid storage chamber 20 increases and expand as the air pressure in the liquid storage chamber 20 decreases, so as to realize the adjustment of the air pressure in the liquid storage chamber 20.

[0066] Please refer to Figure 8 , which is a schematic diagram of the structural changes before and after pressure relief of the fourth embodiment of the leak-proof e-cigarette cartridge 1 provided by the present invention.

[0067] Under normal temperature and pressure, the internal space volume of the liquid storage chamber 20 is V1. When the inside of the e-cigarette cartridge 1 is at high temperature and high pressure, the gas inside the liquid storage chamber 20 expands, and the volume of the expanded gas is V2 (V2 > V1). The hollow elastic body is impacted by the air pressure caused by the gas expansion and undergoes elastic deformation in the direction away from the liquid storage chamber 20 as the air pressure in the liquid storage chamber 20 increases. After the air pressure in the pressure regulation space and the liquid storage chamber 20 reaches equilibrium, the space volume of the pressure regulation space decreases by V3, and correspondingly, the space volume of the liquid storage chamber 20 increases by V3. When V1 + V3 = V2, the gas inside the liquid storage chamber 20 reaches equilibrium, and the expanded gas no longer impacts the inner wall and each sealing area of the liquid storage chamber 20; when V1 + V3 < V2, the gas pressure inside the liquid storage chamber 20 decreases, reducing the impact on the inner wall and each sealing area of the liquid storage chamber 20 and avoiding liquid leakage. When the temperature and pressure inside the liquid storage chamber 20 return to the normal state, the gas pressure on the hollow elastic body decreases, and the hollow elastic body expands in the direction close to the liquid storage chamber 20 as the air pressure in the liquid storage chamber 20 decreases until it returns to its original state. The space volume of the pressure regulation space increases, and the space volume of the liquid storage chamber 20 decreases to the factory state.

[0068] As the liquid inside the liquid storage chamber 20 decreases, the gas pressure inside the liquid storage chamber 20 decreases, and the hollow elastic body undergoes elastic deformation in the direction close to the liquid storage chamber 20 as the gas pressure in the liquid storage chamber 20 decreases, so as to increase the space volume of the pressure regulation space, reduce the space volume of the liquid storage chamber 20, increase the air pressure, and avoid dry burning of the atomization core caused by the lack of liquid supplement, resulting in a burnt smell and affecting the user experience.

[0069] In the first, second, third and fourth embodiments, the opening 111 is provided on the atomizer seat 11, i.e., at the contact point between the liquid storage tank 20 and the atomizer assembly 10; in other embodiments, the opening 111 may be provided on the side wall of the liquid storage tank 20, the opening 111 being in communication with the liquid storage tank 20, the pressure regulating assembly 30 isolating the opening 111 and the liquid storage tank 20 from each other, and the pressure regulating assembly 30 is used to adjust the volume of the pressure regulating space, thereby achieving regulation of the air pressure in the liquid storage tank 20. The pressure regulating assembly 30 may be composed of a piston and an elastic member, or may be an elastomer, an elastic membrane or a hollow elastomer. The structure, arrangement and pressure relief principle are consistent with those of the above embodiments and will not be described in detail herein.

[0070] See also Figure 9 , is a schematic structural diagram of the electronic atomization device provided by the present invention.

[0071] In this embodiment, the electronic atomization device includes a cartridge 1 and a power supply assembly 2 for powering the cartridge 1. The cartridge 1 can implement any of the above embodiments and will not be described in detail here. The power supply assembly 2 includes a battery and a control circuit that controls the operating state of the cartridge 1. The battery can be a lead-acid battery, a lead-crystal battery, or a dry cell battery, as long as it can ensure the normal operation of the electronic atomization device. This application does not impose any restrictions on this.

[0072] The present invention provides an opening 111 on the atomizer seat 11 and a pressure-regulating assembly 30 at the contact point between the liquid storage tank 20 and the opening 111. This allows the gas inside the liquid storage tank 20 to expand under high temperature and high pressure conditions. The pressure-regulating assembly 30 increases the volume of the liquid storage tank 20 by sliding, elastically contracting, or expanding, thereby relieving the pressure in the liquid storage tank 20. This pressure relief reduces or prevents the impact of the internal pressure of the liquid storage tank 20 on the directly contacting sealing area, thereby preventing liquid leakage. When the temperature and pressure inside the liquid storage tank 20 return to normal, the pressure-regulating assembly 30 returns to its original state. At the same time, when the liquid in the liquid storage tank 20 is consumed and the liquid cannot be replenished, the internal pressure of the liquid storage tank 20 decreases. The pressure-regulating assembly 30 elastically contracts or expands to reduce the volume of the liquid storage tank 20, thereby preventing the atomizer core 12 from drying out.

[0073] The above descriptions are only some embodiments of the present invention and do not limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid-leakage-proof cigarette cartridge, characterized in that: include: The shell is formed with a liquid storage tank; an atomizing assembly, used for atomizing the atomized matrix in the liquid storage bin, the atomizing assembly being provided with an opening communicating with the liquid storage bin; A pressure-regulating component is connected to the opening, and the air pressure in the liquid storage tank is regulated by the displacement and / or deformation of the pressure-regulating component; the pressure-regulating component is arranged in the opening; or, the pressure-regulating component is arranged at the opening where the opening is connected to the liquid storage tank; or, the pressure-regulating component is arranged in the liquid storage tank, and one end of the pressure-regulating component is arranged at the opening where the opening is connected to the liquid storage tank; the opening and the pressure-regulating component define a pressure-regulating space, and the pressure-regulating component adjusts the volume of the pressure-regulating space to achieve regulation of the air pressure in the liquid storage tank, and the pressure-regulating component isolates the pressure-regulating space from the liquid storage tank.

2. The anti-leakage cigarette cartridge according to claim 1, characterized in that: The pressure regulating assembly includes a piston and an elastic member; the pressure regulating assembly is arranged in the opening.

3. The anti-leakage cigarette cartridge according to claim 2, characterized in that: As the air pressure in the liquid storage tank increases, the piston slides away from the liquid storage tank and causes the elastic member to undergo elastic deformation, thereby adjusting the air pressure in the liquid storage tank; As the air pressure in the liquid storage tank decreases, the piston slides toward the liquid storage tank under the action of the elastic member to adjust the air pressure in the liquid storage tank.

4. The anti-leakage cigarette cartridge according to claim 1, characterized in that: The pressure regulating component is an elastic body, and the elastic body is arranged in the opening.

5. The anti-leakage cigarette cartridge according to claim 4, characterized in that: The elastic body contracts in a direction away from the liquid storage tank as the air pressure in the liquid storage tank increases, and expands in a direction close to the liquid storage tank as the air pressure in the liquid storage tank decreases, so as to adjust the air pressure in the liquid storage tank.

6. The anti-leakage cigarette cartridge according to claim 4, characterized in that: The elastic body is a cylinder, and the side wall of the cylinder is provided with spaced annular recesses.

7. The leak-proof cigarette cartridge according to claim 1, characterized in that: The pressure regulating component is an elastic membrane, and the elastic membrane covers the opening where the opening is connected to the liquid storage tank.

8. The anti-leakage cigarette cartridge according to claim 7, characterized in that: The elastic membrane is integrally arranged at the opening where the opening is connected to the liquid storage tank.

9. The anti-leakage cigarette cartridge according to claim 7, characterized in that: As the air pressure in the liquid storage tank increases, the elastic membrane elastically deforms in a direction away from the liquid storage tank, thereby increasing the spatial volume of the liquid storage tank; and as the air pressure in the liquid storage tank decreases, the elastic membrane elastically deforms in a direction toward the liquid storage tank, thereby decreasing the spatial volume of the liquid storage tank.

10. The anti-leakage cigarette cartridge according to claim 1, characterized in that: The pressure regulating component is a hollow elastic body, which is communicated with the opening and is located in the liquid storage tank; one end of the hollow elastic body is arranged at the opening connecting the opening and the liquid storage tank.

11. The anti-leakage cigarette cartridge according to claim 10, characterized in that: The hollow elastic body contracts as the air pressure in the liquid storage bin increases, thereby increasing the spatial volume of the liquid storage bin; and expands as the air pressure in the liquid storage bin decreases, thereby decreasing the spatial volume of the liquid storage bin.

12. The anti-leakage cigarette cartridge according to claim 10, characterized in that: The hollow elastic body is a hollow silicone tube; one end of the hollow silicone tube is connected to the opening, and the end of the hollow silicone tube away from the opening is in a closed state.

13. The anti-leakage cigarette cartridge according to claim 10, characterized in that: The hollow elastic body is integrally arranged at the opening where the opening is connected to the liquid storage tank.

14. An electronic atomization device, comprising a cigarette cartridge and a power supply assembly for supplying power to the cigarette cartridge, characterized in that: The cigarette cartridge is the leak-proof cigarette cartridge according to any one of claims 1 to 13.

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