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WO2025125806A1 - Aerosol provision system - Google Patents

Aerosol provision system Download PDF

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Publication number
WO2025125806A1
WO2025125806A1 PCT/GB2024/053092 GB2024053092W WO2025125806A1 WO 2025125806 A1 WO2025125806 A1 WO 2025125806A1 GB 2024053092 W GB2024053092 W GB 2024053092W WO 2025125806 A1 WO2025125806 A1 WO 2025125806A1
Authority
WO
WIPO (PCT)
Prior art keywords
trough
liquid inlet
provision system
aerosol provision
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/GB2024/053092
Other languages
French (fr)
Inventor
Weidong Gao
Xueping LIU
Deke XIE
Gonggao ZHAI
Peng Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of WO2025125806A1 publication Critical patent/WO2025125806A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/42—Cartridges or containers for inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • Aerosol generation devices such as e-cigarettes, heat but do not burn aerosolgenerating substrates (such as tobacco) in aerosol-generating materials. Such devices heat the aerosol-generating materials to a high enough temperature to generate aerosols for users to inhale.
  • a corresponding aerosol generation device generally comprises a liquid storage chamber receiving the aerosolgenerating material and an atomization chamber for heating the aerosol-generating material to generate an aerosol for an user to inhale, and a liquid inlet hole needs to be provided between the liquid storage chamber and the atomization chamber to allow the aerosolgenerating material to enter the atomization chamber from the liquid storage chamber.
  • the invention aims to solve at least one of the technical issues present in the prior art.
  • the present invention puts forward an aerosol provision system, to solve the technical issue of preventing bubbles generated in an aerosol-generating material from blocking the liquid inlet hole, which prevents the aerosol-generating material from entering the atomization chamber from liquid storage chamber.
  • an aerosol provision system which comprises at least a liquid storage chamber for containing an aerosol-generating material, and further comprises a liquid inlet structure, the liquid inlet structure comprises at least a support formed with an atomization chamber, a liquid inlet channel, a first liquid inlet hole and an air exchange hole; the liquid inlet channel is in fluid communication with the liquid storage chamber; the support is formed with a liquid guide trough at least extending along the longitudinal direction of the system, the liquid guide trough is formed into at least a part of the liquid inlet channel, the liquid guide trough and the atomization chamber are arranged along the transverse direction of the system, the liquid guide trough has a first side wall for enclosing the atomization chamber at one side, the first liquid inlet hole and the air exchange hole are arranged on the first side wall, and the first liquid inlet hole and the air exchange hole both communicate the liquid guide trough with the atomization chamber; the air exchange hole is in fluid communication with the external atmosphere of the system, and along the height
  • the air trough forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is less than that near the trough mouth.
  • the air inlet 800 communicates the airway with the external atmosphere of the aerosol provision system, and the atomization chamber 410 is fluid communication with the air inlet 800 and the outlet of the mouthpiece 200 through the airway, so that the aerosol can be smoked by a user from the outlet of the mouthpiece 200.
  • the battery module 500 is configured to provide electrical energy to the heater assembly.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The embodiments of the present invention discloses an aerosol provision system, which comprises at least a liquid storage chamber for containing an aerosol-generating material and a liquid inlet structure, the liquid inlet structure comprises at least a support formed with an atomization chamber, a liquid inlet channel, a first liquid inlet hole and an air exchange hole; the liquid inlet channel is in fluid communication with the liquid storage chamber; the support is formed with a liquid guide trough at least extending along the longitudinal direction of the system, the liquid guide trough is formed into at least a part of the liquid inlet channel, the liquid guide trough and the atomization chamber are arranged along the transverse direction of the system, the liquid guide trough has a first side wall for enclosing the atomization chamber at one side, the first liquid inlet hole and the air exchange hole are arranged on the first side wall, and the first liquid inlet hole and the air exchange hole both communicate the liquid guide trough with the atomization chamber; the air exchange hole is in fluid communication with the external atmosphere of the system, and along the height direction of the system, the air exchange hole is located above the first liquid inlet hole. Through embodiments of this application, the technical issue of preventing bubbles generated in an aerosol-generating material from blocking the liquid inlet hole, which makes the aerosol-generating material to be unable to enter the atomization chamber from liquid storage chamber, is solved.

Description

AEROSOL PROVISION SYSTEM
Technical Field
This invention is related to the field of aerosol provision, particularly relating to an aerosol provision system.
Technical Background
Aerosol generation devices such as e-cigarettes, heat but do not burn aerosolgenerating substrates (such as tobacco) in aerosol-generating materials. Such devices heat the aerosol-generating materials to a high enough temperature to generate aerosols for users to inhale. For liquid aerosol-generating materials (such as cigarette oil, etc.), a corresponding aerosol generation device generally comprises a liquid storage chamber receiving the aerosolgenerating material and an atomization chamber for heating the aerosol-generating material to generate an aerosol for an user to inhale, and a liquid inlet hole needs to be provided between the liquid storage chamber and the atomization chamber to allow the aerosolgenerating material to enter the atomization chamber from the liquid storage chamber.
To ensure that the aerosol-generating material in the liquid storage chamber can smoothly enter the atomization chamber from the liquid storage chamber, it is necessary to maintain a balance or a certain range between the air pressure in the liquid storage chamber and the air pressure outside. To address this issue, it is common to supplement the air pressure in the liquid storage chamber, which can easily generate some bubbles, and if the bubbles get stuck in the liquid inlet hole, it can cause problems such as clogging of the liquid inlet hole, making the aerosol-generating material to be unable to enter the atomization chamber from the liquid storage chamber, thereby affecting the use of the device.
Therefore, there is an urgent need for a new aerosol provision system to solve one or more of these technical issues.
Content of Invention
The invention aims to solve at least one of the technical issues present in the prior art. To this end, the present invention puts forward an aerosol provision system, to solve the technical issue of preventing bubbles generated in an aerosol-generating material from blocking the liquid inlet hole, which prevents the aerosol-generating material from entering the atomization chamber from liquid storage chamber.
This invention provides an aerosol provision system, which comprises at least a liquid storage chamber for containing an aerosol-generating material, and further comprises a liquid inlet structure, the liquid inlet structure comprises at least a support formed with an atomization chamber, a liquid inlet channel, a first liquid inlet hole and an air exchange hole; the liquid inlet channel is in fluid communication with the liquid storage chamber; the support is formed with a liquid guide trough at least extending along the longitudinal direction of the system, the liquid guide trough is formed into at least a part of the liquid inlet channel, the liquid guide trough and the atomization chamber are arranged along the transverse direction of the system, the liquid guide trough has a first side wall for enclosing the atomization chamber at one side, the first liquid inlet hole and the air exchange hole are arranged on the first side wall, and the first liquid inlet hole and the air exchange hole both communicate the liquid guide trough with the atomization chamber; the air exchange hole is in fluid communication with the external atmosphere of the system, and along the height direction of the system, the air exchange hole is located above the first liquid inlet hole.
In an embodiment of this application, by providing the air exchange hole, and providing the air exchange hole above the first liquid inlet hole in the height direction of the aerosol provision system, bubbles generated in the aerosol-generating material is not easy to get stuck in the first liquid inlet hole, to prevent the first liquid inlet hole from being blocked, so that the aerosol-generating material can smoothly enter the atomization chamber from the liquid storage chamber, avoiding affecting the use of the device.
In a technical solution of the aerosol provision system mentioned above, at the position where the liquid guide trough is located, the liquid inlet channel has a second side wall arranged face to face with the first side wall along the transverse direction of the system; there is a first distance along the longitudinal direction of the system between the air exchange hole and the first liquid inlet hole, there is a second distance along the transverse direction of the system between the air exchange hole and the second side wall, and the first distance is not less than the second distance.
In a technical solution of the aerosol provision system mentioned above, the liquid storage chamber is arranged above the support, therefore during the process of bubbles entering the liquid guide trough from the air exchange hole and entering the liquid storage chamber upwards, it will generate transverse movement and longitudinal movement, and the first distance is provided to be not less than the second distance, so that the first distance in the longitudinal direction is large enough to better prevent the bubbles from being pushed to the position of the first liquid inlet hole by the downward moving liquid and blocking the first liquid inlet hole.
In a technical solution of the aerosol provision system mentioned above, the first distance between the air exchange hole and the first liquid inlet hole is 0 ~ 5 mm.
In a technical solution of the aerosol provision system mentioned above, the first distance between the air exchange hole and the first liquid inlet hole is 0.2 ~ 3 mm.
In a technical solution of the aerosol provision system mentioned above, the hole diameter of the air exchange hole ranges from 0.5 ~ 2 mm.
In a technical solution of the aerosol provision system mentioned above, the hole diameter of the air exchange hole is 0.5 mm.
In a technical solution of the aerosol provision system mentioned above, the cross- sectional area of the air exchange hole on the side near the atomization chamber is greater than that on the side near the liquid guide trough.
In a technical solution of the aerosol provision system mentioned above, along the liquid inlet direction, the cross-sectional area of the air exchange hole gradually increases.
When the air exchange hole is provided in the form of a trumpet hole, it is more conducive to the gas outside the system entering the liquid guide trough from the atomization chamber through the air exchange hole, and then entering the liquid storage chamber upwards, so that the pressure balance of the liquid storage chamber is maintained.
In a technical solution of the aerosol provision system mentioned above, a one-way valve is provided within the air exchange hole, and the one-way valve is configured to allow gas to enter the side near the liquid guide trough from the side near the atomization chamber through the air exchange hole.
Due to the provision of the one-way valve within the air exchange hole, it can prevent the aerosol-generating material from entering the air exchange hole, avoiding the clogging of the air exchange hole.
In a technical solution of the aerosol provision system mentioned above, the air exchange hole is in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes.
In a technical solution of the aerosol provision system mentioned above, the number of the air exchange holes includes 2.
In a technical solution of the aerosol provision system mentioned above, a surface of the first side wall on the side facing the atomization chamber is provided with an air trough, the air trough is recessed on the surface and extends along the surface in the length direction, one end of the air trough is in fluid communication with the air exchange hole, and the other end of the air trough is in fluid communication with the external atmosphere.
In a technical solution of the aerosol provision system mentioned above, the width of the trough mouth of the air trough is smaller than the width of the trough bottom of the air trough.
In a technical solution of the aerosol provision system mentioned above, the width of the air trough shows an increasing trend along the depth direction from the trough mouth to the trough bottom.
In a technical solution of the aerosol provision system mentioned above, the air trough forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is greater than that near the trough mouth.
When the width of the trough mouth of the air trough is provided to be less than the width of the trough bottom, due to that the trough mouth is smaller, the enter of oil guide cotton can be reduced, and due to that the trough bottom is wider, sufficient space can be reserved for gas to pass through.
In a technical solution of the aerosol provision system mentioned above, the width of the trough mouth of the air trough is greater than the width of the trough bottom of the air trough.
In a technical solution of the aerosol provision system mentioned above, the width of the air trough shows a decreasing trend along the depth direction from the trough mouth to the trough bottom.
In a technical solution of the aerosol provision system mentioned above, the air trough forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is less than that near the trough mouth.
When the width of the trough mouth of the air trough is provided to be greater than the width of the trough bottom, it can prevent the oil absorbing cotton from extending into the trough bottom of the air trough, avoiding the clogging of the air trough by the oil absorbing cotton and affecting air passing through.
In a technical solution of the aerosol provision system mentioned above, a stepped surface is formed between the multiple segments of trough bodies.
In a technical solution of the aerosol provision system mentioned above, in the same plane, the air trough is non-linear in shape.
In a technical solution of the aerosol provision system mentioned above, the air trough has multiple segments located in different planes, with height differences or angles between different planes.
In a technical solution of the aerosol provision system mentioned above, the air trough is S-shaped in shape.
By providing a non-linear air trough, the aerosol-generating material entering the air trough can be blocked, to prevent the aerosol-generating material from flowing out of the system through the air trough, avoiding leakage.
In a technical solution of the aerosol provision system mentioned above, the air trough is further provided with at least one blocking element therein, the at least one blocking element is arranged on a side wall or the trough bottom of the air trough, there is a gap between the at least one blocking element and the side wall or trough bottom of the air trough that allows gas to pass through, or a gap arranged on the at least one blocking element that allows gas to pass through.
By providing the blocking element in the air trough, the aerosol-generating material entering the air trough can be further blocked, to prevent the aerosol-generating material from flowing out of the system through the air trough, avoiding leakage.
In a technical solution of the aerosol provision system mentioned above, the at least one blocking element is arranged on the side wall of the air trough.
In a technical solution of the aerosol provision system mentioned above, there are a plurality of blocking elements, and the plurality of blocking elements is cross arranged on two opposite side walls of the air trough.
In a technical solution of the aerosol provision system mentioned above, one end of the or each blocking element is in contact with the trough bottom of the air trough.
In a technical solution of the aerosol provision system mentioned above, the first liquid inlet hole is in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes.
In a technical solution of the aerosol provision system mentioned above, the cross- sectional area of the first liquid inlet hole on the side near the liquid guide trough is greater than that on the side near the atomization chamber.
In a technical solution of the aerosol provision system mentioned above, along the liquid inlet direction, the cross-sectional area of the first liquid inlet hole gradually decreases.
In a technical solution of the aerosol provision system mentioned above, the first liquid inlet hole is composed of at least two segments of hole bodies along the liquid inlet direction, and the hole diameter of one end of the hole body near the atomization chamber is smaller than that of the other end.
When the first liquid inlet hole is provided in the form of a trumpet hole, it is more conducive to the aerosol-generating material entering the atomization chamber from the liquid guide trough through the first liquid inlet hole, making liquid inlet smooth, enhancing user experience.
In a technical solution of the aerosol provision system mentioned above, a groove is provided at a part of an edge of the first liquid inlet hole on the side near the atomization chamber, and the cross-sectional area of the groove is greater than that of the first liquid inlet hole.
When a groove at a part of an edge of the first liquid inlet hole is provided on the side near the atomization chamber, the contact area between the oil guide body and the aerosolgenerating material is increased, and the oil absorption speed of the oil guide body is improved.
In a technical solution of the aerosol provision system mentioned above, the liquid inlet channel further comprises an annular groove arranged on an upper surface of the support, the upper surface of the support faces a liquid storage chamber, and the annular groove is in fluid communication with the liquid guide trough. In a technical solution of the aerosol provision system mentioned above, the system further comprises a sealing element for sealing between the support and the liquid storage chamber, and the sealing element is provided with a second liquid inlet hole in fluid communication with the annular groove.
When the sealing element is provided between the support and the liquid storage chamber, the leakage of the aerosol-generating material in the liquid storage chamber can be avoided.
In a technical solution of the aerosol provision system mentioned above, at least a part of the liquid inlet channel is enclosed by the first side wall of the liquid guide trough and an inner wall of a housing of the system.
In a technical solution of the aerosol provision system mentioned above, the height of the second side wall is smaller than that of the first side wall, so that the liquid inlet channel in this part of region is formed by the inner wall of the housing of the system and the first side wall.
When the height of the second side wall is provided to be smaller than that of the first side wall, the width of liquid discharge and air exchange is increased, increasing sufficient liquid discharge on the one hand, and preventing bubble jamming on the other hand.
In some examples, the height direction of the system is the vertical direction.
In some examples, the height direction of the system is the height (or vertical) direction when the system is in a puffing orientation, i.e. an orientation suitable for or configured for puffing.
In some examples, the height direction of the system is the axial length direction of the system when the system is orientated vertically, e.g. as shown in figure 1 , having a mouthpiece vertically above a liquid storage tank. In some examples, e.g. as shown in figure 1 , the system is elongate in the height (or vertical) direction.
One or more technical solutions of this invention has at least one or more of the beneficial effects as follows:
In the technical solution implementing the present invention, the aerosol provision system, which comprises at least a liquid storage chamber for containing an aerosolgenerating material and a liquid inlet structure, the liquid inlet structure comprises at least a support formed with an atomization chamber, a liquid inlet channel, a first liquid inlet hole and an air exchange hole; the liquid inlet channel is in fluid communication with the liquid storage chamber; the support is formed with a liquid guide trough at least extending along the longitudinal direction of the system, the liquid guide trough is formed into at least a part of the liquid inlet channel, the liquid guide trough and the atomization chamber are arranged along the transverse direction of the system, the liquid guide trough has a first side wall for enclosing the atomization chamber at one side, the first liquid inlet hole and the air exchange hole are arranged on the first side wall, and the first liquid inlet hole and the air exchange hole both communicate the liquid guide trough with the atomization chamber; the air exchange hole is in fluid communication with the external atmosphere of the system, and along the height direction of the system, the air exchange hole is located above the first liquid inlet hole. The embodiments provided by embodiments of this application, can effectively prevent bubbles generated in the aerosol-generating material from blocking the first liquid inlet hole, prevent the aerosol-generating material from being unable to enter the atomization chamber from liquid storage chamber, and thus avoid affecting the normal use of the system.
Additional aspects and advantages of the invention will be partly given in the following description, will become apparent from the following description, or will be learned through the practice of the invention.
Description of Drawing
Referring to the accompanying drawings, the disclosed content of the present invention will become more understandable. It is easily understood by those skilled in the art that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. Moreover, similar numbers in the figures are used to represent similar components, among which:
Fig. 1 is a schematic three-dimensional structure diagram of an aerosol provision system provided by an embodiment of this application;
Fig. 2 is a sectional view of an aerosol provision system provided by an embodiment of this application;
Fig. 3 is a schematic three-dimensional structure diagram of an atomizer provided by an embodiment of this application;
Fig. 4 is an exploded view of an atomizer provided by an embodiment of this application;
Fig. 5 is a schematic structure diagram of partial structure of an aerosol provision system provided by an embodiment of this application;
Fig. 6 is a schematic structure diagram of a liquid inlet structure provided by an embodiment of this application in one viewing direction;
Fig. 7 is a schematic structure diagram of a liquid inlet structure provided by an embodiment of this application in another viewing direction;
Fig. 8 is a schematic structure diagram of a liquid storage tank provided by an embodiment of this application.
Description of Drawing Label:
100, housing; 200, mouthpiece; 300, liquid storage tank; 310, liquid storage chamber; 320, outer wall; 400, atomizer; 410, atomization chamber; 420, structural member; 430, airway silicone member; 441 , heating body; 442, oil guide body; 500, battery module; 600, liquid inlet structure; 610, support; 611 , liquid guide trough; 612, first side wall; 620, liquid inlet channel; 621 , annular trough; 622, second side wall; 630, first liquid inlet hole; 631 , groove; 640, air exchange; 650, air trough; 700, sealing element; 710, second liquid inlet hole; 800, air inlet.
Detailed description
The following describes some embodiments of the present invention with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
As used herein, the term “delivery system” is intended to encompass systems that deliver at least one substance to a user in use, and includes: combustible aerosol provision systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for roll-your-own or for make-your-own cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material); non-combustible aerosol provision systems that release compounds from an aerosolgenerating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials; and aerosol-free delivery systems that deliver the at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may not comprise nicotine.
According to the present disclosure, a “combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is combusted or burned during use in order to facilitate delivery of at least one substance to a user.
In some embodiments, the delivery system is a combustible aerosol provision system, such as a system selected from the group consisting of a cigarette, a cigarillo and a cigar.
In some embodiments, the disclosure relates to a component for use in a combustible aerosol provision system, such as a filter, a filter rod, a filter segment, a tobacco rod, a spill, an aerosol-modifying agent release component such as a capsule, a thread, or a bead, or a paper such as a plug wrap, a tipping paper or a cigarette paper.
According to the present disclosure, a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
In some embodiments, the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
In some embodiments, the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
In some embodiments, the non-combustible aerosol provision system is an aerosolgenerating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.
In some embodiments, the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated. Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine. In some embodiments, the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
Typically, the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non-combustible aerosol provision device.
In some embodiments, the disclosure relates to consumables comprising aerosolgenerating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
In some embodiments, the non-combustible aerosol provision system, such as a non- combustible aerosol provision device thereof, may comprise a power source and a controller. The power source may, for example, be an electric power source or an exothermic power source. In some embodiments, the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
In some embodiments, the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
In some embodiments, the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosolmodifying agent.
In some embodiments, the delivery system is an aerosol-free delivery system that delivers at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may not comprise nicotine.
In some embodiments, the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised. As appropriate, either material may comprise one or more active constituents, one or more flavours, one or more aerosolformer materials, and/or one or more other functional materials.
In some embodiments, the substance to be delivered comprises an active substance. The active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. The active substance may for example be selected from nutraceuticals, nootropics, psychoactives. The active substance may be naturally occurring or synthetically obtained. The active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof. The active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
As noted herein, the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.
As noted herein, the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof. As used herein, the term "botanical" includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like. Alternatively, the material may comprise an active compound naturally existing in a botanical, obtained synthetically. The material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, Wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab or any combination thereof. The mint may be chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.
In some embodiments, the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco. In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp.
In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
In some embodiments, the substance to be delivered comprises a flavour. As used herein, the terms "flavour" and "flavourant" refer to materials which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers. They may include naturally occurring flavour materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice (liquorice), hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian spices, herb, Wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, khat, naswar, betel, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, piment, ginger, coriander, coffee, hemp, a mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo biloba, hazel, hibiscus, laurel, mate, orange skin, rose, tea such as green tea or black tea, thyme, juniper, elderflower, basil, bay leaves, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, curcuma, cilantro, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena, tarragon, limonene, thymol, camphene), flavour enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and/or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath freshening agents. They may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, liquid such as an oil, solid such as a powder, or gas.
In some embodiments, the flavour comprises menthol, spearmint and/or peppermint. In some embodiments, the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry. In some embodiments, the flavour comprises eugenol. In some embodiments, the flavour comprises flavour components extracted from tobacco. In some embodiments, the flavour comprises flavour components extracted from cannabis.
In some embodiments, the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect. A suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucolyptol, WS-3.
Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants. In some embodiments, the aerosol-generating material may comprise an “amorphous solid”, which may alternatively be referred to as a “monolithic solid” (i.e. non-fibrous). In some embodiments, the amorphous solid may be a dried gel. The amorphous solid is a solid material that may retain some fluid, such as liquid, within it. In some embodiments, the aerosol-generating material may for example comprise from about 50wt%, 60wt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or 100wt% of amorphous solid.
The aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
The aerosol-former material may comprise one or more constituents capable of forming an aerosol. In some embodiments, the aerosol-former material may comprise one or more of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1 ,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
The one or more other functional materials may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
The material may be present on or in a support, to form a substrate. The support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy. In some embodiments, the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or either side of the material.
A consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user. A consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent. A consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosolgenerating material to generate aerosol in use. The heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.
A susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field. The susceptor may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material. The heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material. The susceptor may be both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms. The device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.
An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol. The aerosolmodifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent. The aerosol-modifying agent may, for example, be an additive or a sorbent. The aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent. The aerosolmodifying agent may, for example, be a solid, a liquid, or a gel. The aerosol-modifying agent may be in powder, thread or granule form. The aerosol-modifying agent may be free from filtration material.
An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy, so as to release one or more volatiles from the aerosol-generating material to form an aerosol. In some embodiments, the aerosol generator is configured to cause an aerosol to be generated from the aerosolgenerating material without heating. For example, the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.
The present disclosure relates to aerosol delivery systems (which may also be referred to as vapour delivery systems) such as nebulisers or e-cigarettes. Throughout the following description the term "e-cigarette" or "electronic cigarette" may sometimes be used, but it will be appreciated this term may be used interchangeably with aerosol delivery system I device and electronic aerosol delivery system I device. Furthermore, and as is common in the technical field, the terms "aerosol" and "vapour", and related terms such as "vaporise", "volatilise" and "aerosolise", may generally be used interchangeably.
Aerosol delivery systems (e-cigarettes) often, though not always, comprise a modular assembly comprising a reusable device part and a replaceable (disposable/consumable) cartridge part. Often, the replaceable cartridge part will comprise the aerosol-generating material and the vaporiser (which may collectively be called a “cartomizer”) and the reusable device part will comprise the power provision (e.g. rechargeable power source) and control circuitry. It will be appreciated these different parts may comprise further elements depending on functionality. For example, the reusable device part will often comprise a user interface for receiving user input and displaying operating status characteristics, and the replaceable cartridge device part in some cases comprises a temperature sensor for helping to control temperature. Cartridges are electrically and mechanically coupled to the control unit for use, for example using a screw thread, bayonet, or magnetic coupling with appropriately arranged electrical contacts. When the aerosol-generating material in a cartridge is exhausted, or the user wishes to switch to a different cartridge having a different aerosol-generating material, the cartridge may be removed from the reusable part and a replacement cartridge attached in its place. Systems and devices conforming to this type of two-part modular configuration may generally be referred to as two-part systems/devices.
It is common for electronic cigarettes to have a generally elongate shape. For the sake of providing a concrete example, certain embodiments of the disclosure will be taken to comprise this kind of generally elongate two-part system employing disposable cartridges. However, it will be appreciated that the underlying principles described herein may equally be adopted for different configurations, for example single-part systems or modular systems comprising more than two parts, refillable devices and single-use disposables, as well as other overall shapes, for example based on so-called box-mod high performance devices that typically have a boxier shape. More generally, it will be appreciated certain embodiments of the disclosure are based on aerosol delivery systems which are operationally configured to provide functionality in accordance with the principles described herein and the constructional aspects of systems configured to provide the functionality in accordance with certain embodiments of the disclosure is not of primary significance.
As described in technical background, directed at the aerosol provision system using liquid aerosol-generating material, due to the supplement of air pressure in the liquid storage chamber to maintain a balance or a certain range between the air pressure in the liquid storage chamber and the air pressure outside, or due to the inherent characteristics of the liquid aerosol-generating material, it is easy to generate some bubbles. While for the aerosol provision system with the existing structures, it is easy to generate bubbles which get stuck in the liquid inlet hole or the air exchange hole, thus it can cause problems such as clogging of the liquid inlet hole or the air exchange hole, making the aerosol-generating material to be unable to enter the atomization chamber from the liquid storage chamber or external air to be unable to enter the liquid storage chamber through the air exchange hole, thereby affecting the use of the device. Based on this, this application provides a new structure of aerosol provision system, which makes bubbles generated in the aerosol-generating material to be not easy to get stuck in the liquid inlet hole, to prevent the liquid inlet hole from being blocked, so that the aerosol-generating material can smoothly enter the atomization chamber from the liquid storage chamber, avoiding affecting the use of the system.
Fig. 1 is a schematic three-dimensional structure diagram of an aerosol provision system provided by an embodiment of this application, Fig. 2 is a sectional view of an aerosol provision system provided by an embodiment of this application, referring to Fig. 1 and Fig. 2, the aerosol provision system generally comprises a housing 100, a mouthpiece 200, a liquid storage tank 300, an atomizer 400, a battery module 500 and an air inlet 800. Wherein, the housing is formed inside with a containing space and an airway, the liquid storage tank 300, the atomizer 400 and the battery module 500 are arranged or at least partially arranged within the containing space, and an atomization chamber 410 forms part of the airway. The liquid storage tank 300 is formed inside with a liquid storage chamber 310, the liquid storage chamber 310 is used to accommodate the aerosol-generating material, such as cigarette oil, etc.; the atomizer 400 is formed inside with an atomization chamber 410 to accommodate a heater assembly. The atomization chamber 410 is in fluid communication with the liquid storage chamber 310, to facilitate the entry of the aerosol-generating material in the liquid storage chamber 310 into the atomization chamber 410, which forms aerosol after being heated by the heater assembly. The air inlet 800 communicates the airway with the external atmosphere of the aerosol provision system, and the atomization chamber 410 is fluid communication with the air inlet 800 and the outlet of the mouthpiece 200 through the airway, so that the aerosol can be smoked by a user from the outlet of the mouthpiece 200. The battery module 500 is configured to provide electrical energy to the heater assembly. In an embodiment of this application, there is no specific limitation on the housing 100 and the mouthpiece 200, without violating the inventive concept of this application, they can be selected or provided according to the actual needs of the product.
Fig. 3 is a schematic three-dimensional structure diagram of an atomizer provided by an embodiment of this application, Fig. 4 is an exploded view of an atomizer provided by an embodiment of this application, referring to Figs. 3 and 4, the atomizer comprises the heater assembly, an atomization chamber for accommodating the heater assembly, a structural member 420 for fixing the heater assembly, and an airway silicone member 430. The heater assembly and airway silicone member 430 are both clamped onto structural member 420. Wherein, the heater assembly comprises a heating body 441 and an oil guide body 442 that are stacked, and the heating body 441 is located between the oil guide body 442 and the airway. As an exemplary rather than limiting explanation, the heating body 441 has a mesh structure, and the meshes of the mesh structure are either circular or polygonal. The oil guide rate of the oil guide body 442 on the side near the heating body 441 is lower than that on the side away from the heating body 441 , and the oil absorption rate of the oil guide body 442 on the side near the heating body 441 is higher than that on the side away from the heating body 441 , resulting in a higher oil guide rate of the portion of the oil guide body 442 near the heating body 441 , improving its oil guide efficiency, while a higher oil absorption rate of the portion away from the heating body 441 , increasing the oil absorption amount at the heating body 441 . The surface of the airway silicone member 430 is provided with multiple grooves to collect the condensate formed by aerosol condensation in the atomization chamber and prevent condensate leakage.
Fig. 5 is a schematic structure diagram of partial structure of an aerosol provision system provided by an embodiment of this application, Fig. 6 is a schematic structure diagram of a liquid inlet structure provided by an embodiment of this application in one viewing direction, Fig. 7 is a schematic structure diagram of a liquid inlet structure provided by an embodiment of this application in another viewing direction, and referring to Fig. 5 and Fig. 7, the liquid inlet structure 600 provided in an embodiment of this application comprises a support 610, a liquid inlet channel 620, a first liquid inlet hole 630 and an air exchange hole 640. Wherein, the support 610 and the structural member 420 are matched to form the atomization chamber 410, and the liquid inlet channel 620 is in communication with the liquid storage chamber 310.
Further referring to Fig. 6, the support 610 is further formed thereon with a liquid guide trough 611 and an annular groove 621 that are in fluid communication with each other. It can be understood that the annular groove 621 is arranged on the upper surface of the support 610, which faces the liquid storage chamber 310. The liquid guide trough 611 may be composed of multiple portions, and at least a part thereof extends along the longitudinal direction of the aerosol provision system, and along the longitudinal direction of the aerosol provision system, the liquid guide trough 611 and the annular groove 621 form the above- mentioned liquid inlet channel 620. A portion of the liquid guide trough 611 extending along the longitudinal direction of the aerosol provision system and the atomization chamber 410 are arranged along the transverse direction of the system. The liquid guide trough 611 has a first side wall 612 for enclosing the atomization chamber 410 at one side, and the first liquid inlet hole 630 and the air exchange hole 640 are both arranged on the first side wall 612 and run through the first side wall 612. The side of the oil guide body 442 away from the heating body 441 is in contact with the surface of the first side wall 612 facing the atomization chamber 410, so that the oil guide body 442 pushes against the first liquid inlet hole 630 and one end of the air exchange hole 640 located at the atomization chamber 410. The first liquid inlet hole 630 and the air exchange hole 640 both communicate the liquid guide trough 611 with the atomization chamber 410. The aerosol-generating material in the liquid storage chamber 310 enters the atomization chamber 410 through the liquid guide trough 611 and the first liquid inlet hole 630 sequentially from the liquid storage tank 300, in order to form aerosols after being heated by the heater assembly arranged in the atomization chamber. The air exchange hole 640 is configured to be in communication with the external atmosphere of the aerosol provision system, therefore, during the use of the system, when the internal pressure of the liquid storage chamber 310 decreases with the consumption of the aerosol-generating material, due to the pressure difference, the external atmosphere will enter the atomization chamber 410 from the outside, then enter the liquid guide trough 611 through the air exchange hole 640, and then enter the liquid storage chamber 310 through the liquid guide trough 611 to maintain the hydraulic balance of the liquid storage chamber 310.
Preferably, in an embodiment of this application, in the height direction of the system, the air exchange hole 640 is arranged above the first liquid inlet hole 630, bubbles generated in the aerosol-generating material is thus not easy to get stuck in the first liquid inlet hole 630, to prevent the first liquid inlet hole from being blocked, so that the aerosol-generating material can smoothly enter the atomization chamber from the liquid storage chamber, avoiding affecting the use of the device.
Fig. 8 is a schematic structure diagram of a liquid storage tank provided by an embodiment of this application, referring to Fig. 8, as a preferred embodiment, the liquid storage tank 300 comprises an outer wall 320, the outer wall 320 of the liquid storage tank 300 may be integrally formed with the housing 100, that is, the outer wall 320 forms a part of the housing 100, and the outer wall 320 and the housing 100 may also be two independent components. In a specific embodiment, the outer wall 320 and the housing 100 are two independent components, the outer wall 320 is covered on the outside of the atomizer 400, the liquid storage chamber 310 is jointly enclosed by the outer wall 320 and a portion of the surface of the atomizer 400, and at least a part of the liquid inlet channel 620 are enclosed by the first side wall 612 of the liquid guide trough 611 and the outer wall 320. Therefore, along the height direction of the aerosol provision system, the liquid storage chamber 310 is located above the atomizer 400, the atomization chamber 410, and the liquid guide trough 611. It can be understood that when the outer wall 320 is integrated with the housing 100, at least a portion of the liquid inlet channel 620 is enclosed by the first side wall 612 of the liquid guide trough 611 and the inner wall of the housing 100 of the system.
Furthermore, the system further comprises a sealing element 700 for sealing between the support 610 and the liquid storage chamber 310. In specific implementation, the shape and size of the sealing element 700 are fitted with the size and shape of the end of the support 610 near the liquid storage chamber 310, which are no specifically restricted here; and the liquid storage tank 300 comprises an outer wall 320 covered on the periphery of the sealing element 700, and the portions of the outer wall 320 and the sealing element 700 that are in contact with each other are interference fitted. In this way, it can avoid the leakage of the aerosol-generating material in the liquid storage chamber, which can contaminate other components such as battery module in the aerosol provision system. At the same time, in order to achieve fluid communication between the liquid storage chamber 310 and the liquid guide trough 611 , the sealing element 700 is opened thereon with a second liquid inlet hole 710, to facilitate the aerosol-generating material in the liquid storage chamber 310 to enter the liquid guide trough 611 through the second liquid inlet hole 710.
It can be understood that bubbles entering the liquid guide trough 611 from the air exchange hole 640 will generate transverse and longitudinal movements when entering the liquid storage chamber 310 upwards, and if the longitudinal distance is long enough, it can better prevent the bubbles from being pushed to the position of the air inlet hole by the downward moving liquid (i.e. the aerosol-generating material) and blocking the air inlet hole. Based on this, further referring to Fig. 6, in an embodiment of this application, the liquid inlet channel 620 is provided with a second side wall 622, the second side wall 622 is arranged face to face with the first side wall 612 along the transverse direction of the system at the position of the liquid guide trough 611 . The distance between the air exchange hole 640 and the first liquid inlet hole 630 along the longitudinal direction of the system is a first distance, and the distance between the air exchange hole 640 and the second side wall 622 along the transverse direction of the system is a second distance, in an example of this embodiment, it is necessary to ensure that the first distance is not less than the second distance, so that the longitudinal first distance is long enough to prevent bubbles from being pushed to the position of the first liquid inlet hole by the downward moving liquid and blocking the first liquid inlet hole. It should be noted that in an embodiment of this application, there are no specific limitations on the first and second distances, and in practical applications, they can be provided according to product requirements.
As a preferred implementation, in an embodiment of this application, the height of the second side wall 622 is smaller than that of the first side wall 612, so that the liquid inlet channel (i.e. the liquid guide trough) in this area is formed by the inner wall of the housing of the system and the first side wall 612. It can be understood that the height of the second side wall 622 is provided to be smaller than that of the first side wall 612, which increases the width of liquid discharge and air exchange, increasing sufficient liquid discharge on the one hand, and preventing bubble jamming on the other hand.
As a preferred implementation, in an embodiment of this application, the first distance between the air exchange hole 640 and the first liquid inlet hole 630 is 0 ~ 5 mm, for example, the first distance is 0.1 mm, 0.2 mm, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, and the like. Preferably, the first distance between the air exchange hole 640 and the first liquid inlet hole 630 is any value between 0.2 ~ 3 mm.
As a preferred implementation, in an embodiment of this application, the hole diameter of the air exchange hole 640 ranges from 0.5 ~ 2 mm, for example, the hole diameter of the air exchange hole 640 is 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, and the like. Preferably, the hole diameter of the air exchange hole 640 is 0.5 mm.
As a preferred implementation, in an embodiment of this application, the cross- sectional area of the air exchange hole 640 on the side near the atomization chamber 410 is larger than that on the side near the liquid guide trough 611 , that is, the hole diameter of the air exchange hole 640 on the side near the atomization chamber 410 is larger than that on the side near the liquid guide trough 611. In a specific embodiment, the cross-sectional area of the air exchange hole may be provided to gradually increase along the liquid inlet direction. In another specific embodiment, the air exchange hole 640 may be provided to composed of multiple segments of holes, and the hole diameters of the multiple segments of holes gradually increase along the liquid inlet direction. It can be understood that when the air exchange hole is provided in the above-mentioned form (also referred as trumpet hole), it is more conducive to the gas outside the system entering the liquid guide trough 611 from the atomization chamber 410 through the air exchange hole 640, and then entering the liquid storage chamber 310 upwards, so that the pressure balance of the liquid storage chamber is maintained.
As a preferred implementation, in an embodiment of this application, the air exchange hole 640 may further be provided therein with a one-way valve (not shown). The one-way valve may be configured to allow gas to enter the side near the atomization chamber through the air exchange hole 640, and preferably, the one-way valve may be further configured to not allow liquid (such as the aerosol-generating material) to enter the side near the atomization chamber 410 from the side near the liquid guide trough 611 through the air exchange hole 640, thereby preventing the aerosol generating material from entering the air exchange hole and avoiding clogging of the air exchange hole.
It can be understood that the specific shape and quantity of the air exchange holes are not limited in embodiments of this application, and without violating the inventive concept of this application, any known shape can be used as the shape of the air exchange holes in embodiments of this application. For example, the air exchange hole 640 may be in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes, polygonal shapes including but not limited to equilateral or non-equilateral pentagons, hexagons, octagons, etc., which will not be listed here. The number of air exchange holes 640 may be provided according to the actual needs of the product, and as an exemplary rather than limiting explanation, in an embodiment of this application, the number of air exchange holes includes 2, and there is a certain distance between the two air exchange holes.
As a preferred implementation, in an embodiment of this application, the liquid inlet structure 600 further comprises an air trough 650. As shown in Fig. 7, the air trough 650 is located on the surface of the first side wall 612 facing the atomization chamber 410, the air trough 650 is recessed on the surface and extends along the length direction of the surface, one end of the air trough 650 is in fluid communication with the air exchange hole 640, and the other end of the air trough 650 is fluid communication with the external atmosphere, that is, the communication between the air exchange hole 640 and the external atmosphere is achieved through the air trough 650.
As a preferred example, the width of the trough mouth of the air trough 650 is smaller than the width of the trough bottom of the air trough 650. When the width of the trough mouth of the air trough 650 is provided to be less than the width of the trough bottom, due to that the trough mouth is smaller, the entry of oil guide cotton can be reduced, and due to that the trough bottom is wider, sufficient space can be reserved for gas to pass through.
In a specific embodiment, the width of the air trough 650 shows an increasing trend along the depth direction from the trough mouth to the trough bottom.
In another specific embodiment, the air trough 650 forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is greater than that near the trough mouth. Preferably, a stepped surface is formed between the multiple segments of trough bodies.
As a preferred example, the width of the trough mouth of the air trough 650 is larger than the width of the trough bottom of the air trough 650. When the width of the trough mouth of the air trough is provided to be greater than the width of the trough bottom, it can prevent the oil absorbing cotton from extending into the trough bottom of the air trough, avoiding the clogging of the air trough by the oil absorbing cotton and affecting air passing through.
In a specific embodiment, the width of the air trough 650 shows a decreasing trend along the depth direction from the trough mouth to the trough bottom.
In another specific embodiment, the air trough 650 forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is less than that near the trough mouth. Preferably, a stepped surface is formed between the multiple segments of trough bodies. Due to the fact that the air trough 650 is in fluid communication with the external atmosphere and is located in the atomization chamber 410, in order to prevent the aerosolgenerating material from flowing out of the system through the air trough and causing leakage, as shown in the figures, in an embodiment of this application, the air trough 650 is arranged in the same plane and is non-linear in shape in order to block the aerosol-generating material entering the air trough 650 and prevent the aerosol-generating material from flowing out of the system through the air trough, avoiding leakage. In a specific embodiment, the air trough 650 has multiple segments located in different planes, with height differences or angles between different planes, wherein, the height differences and angles here can be provided according to the actual situation of the product, and embodiments of this application do not have specific limitations on this. In another specific embodiment, the air trough 650 is S-shaped in shape.
In another specific embodiment, the air trough 650 is further provided with at least one blocking element (not shown) therein. In a specific implementation, the blocking element can be provided on the side wall of the air trough 650 or at the trough bottom of the air trough 650. Preferably, the blocking element is configured to have a gap between it and the side wall or trough bottom of the air trough that allows gas to pass through, or the blocking element is provided with a gap thereon that allows gas to pass through, so as to allow external atmosphere to enter the air exchange hole through the air trough 650 while blocking the aerosol-generating material from flowing out of the system through the air trough 650. It can be understood that when the blocking element is provided in the air trough, the aerosolgenerating material entering the air trough can be further blocked, to prevent the aerosolgenerating material from flowing out of the system through the air trough, avoiding leakage.
In an embodiment of this application, there may be one or more blocking elements. In a specific embodiment, at least one blocking element is provided on the side wall of the air trough 650; in another specific embodiment, there are multiple blocking elements, and the multiple blocking elements are cross arranged on the two opposite side walls of the air trough 650. Preferably, one end of the blocking element contacts the trough bottom of the air trough 650, thereby increasing the blocking effect on the aerosol-generating material.
It should be noted that, in an embodiment of this application, the specific shape and quantity of the first liquid inlet holes are not limited either, and without violating the inventive concept of this application, any known shape can be used as the shape of the first liquid inlet holes in embodiments of this application. For example, the first liquid inlet hole 630 may be in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes, polygonal shapes including but not limited to equilateral or non-equilateral pentagons, hexagons, octagons, etc., which will not be listed here. The number of first liquid inlet holes 630 may be provided according to the actual needs of the product, and as an exemplary rather than limiting explanation, in an embodiment of this application, the number of first liquid inlet holes 630 includes 2, and there is a certain distance between the two first liquid inlet holes.
As a preferred implementation, in an embodiment of this application, the cross- sectional area of the first liquid inlet hole 630 on the side near the liquid guide trough 611 is larger than that on the side near the atomization chamber 410. In a specific embodiment, the cross-sectional area of the first liquid inlet hole may be provided to gradually increase along the liquid inlet direction. In another specific embodiment, the first liquid inlet hole 630 is composed of at least two segments of hole bodies along the liquid inlet direction, and the hole diameter of one end of the hole body near the atomization chamber 410 is smaller than that of the other end. When the first liquid inlet hole 630 is provided in the above-mentioned form, it is more conducive to the aerosol-generating material entering the atomization chamber 410 from the liquid guide trough 611 through the first liquid inlet hole 630, making liquid inlet smooth, enhancing user experience.
Further referring to Fig. 7, as a preferred implementation, in an embodiment of this application, a groove 631 is provided at a part of an edge of the first liquid inlet hole 630 on the side near the atomization chamber, and the cross-sectional area of the groove 631 is greater than that of the first liquid inlet hole 630. As mentioned earlier, due to that the oil guide body 442 pushes against one end of the first liquid inlet hole 630 at the atomization chamber 410, the aerosol-generating material enters the atomization chamber 410 through the first liquid inlet hole 630 and is adsorbed by the oil guide body 442, therefore, in an embodiment of this embodiment, a groove 631 is opened at a part of the edge of the first liquid inlet hole 630 on the side near the atomization chamber, and due to the material characteristics of the oil guide body 442 itself, the oil guide body 442 will further push against the groove 631 , thereby increasing the contact area between the oil guide body and the aerosol-generating material, and improving the oil absorption speed of the oil guide body.
The various embodiments in the description are described in a progressive manner, and the same and similar parts between the respective embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. Especially for systems or system embodiments, due to their basic similarity to method embodiments, the description is relatively simple, please refer to the description of the method embodiments for relevant information. The systems and system embodiments described above are only illustrative, where the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed across multiple network units. Some or all modules can be selected according to actual needs to achieve the purposes of the solutions of the embodiments. A person of ordinary skill in the art can understand and implement it without creative work.
In the description of this specification, the referential terminology "an embodiment," "some embodiments," "example," "specific example," or "some examples" means that specific features, structures, materials, or characteristics described in connection with the embodiment or example are comprised in at least one embodiment or example of the present invention. In this specification, the indicative expression of the above-mentioned terms does not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable way in any one or more embodiments or examples.
Moreover, the terms "first," "second," etc., are used merely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the characteristics defined as "first," "second," etc., may explicitly or implicitly comprise at least one such characteristic. In the description of this invention, the term "multiple" means at least two, such as two, three, etc., unless otherwise specifically defined.
In this invention, unless explicitly defined and limited, terms such as "mounting," "connecting," "connection," "fixing," etc., should be understood broadly. For instance, the connection can be a fixed connection or a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary medium, it can be the internal communication of two components or the interaction between two components, unless explicitly defined otherwise. Those skilled in the art can understand the specific meanings of these terms in the context of the invention based on the circumstances.
Although the embodiments of the invention have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be considered as limiting the invention. Those skilled in the art within the scope of the invention can make variations, modifications, replacements, and variations to the above-described embodiments.

Claims

Claims
1. An aerosol provision system, comprising at least a liquid storage chamber for containing an aerosol-generating material and further comprising a liquid inlet structure, wherein the liquid inlet structure comprises at least a support formed with an atomization chamber, a liquid inlet channel, a first liquid inlet hole and an air exchange hole; wherein: the liquid inlet channel is in fluid communication with the liquid storage chamber; the support is formed with a liquid guide trough at least extending along the longitudinal direction of the system, the liquid guide trough is formed into at least a part of the liquid inlet channel, the liquid guide trough and the atomization chamber are arranged along the transverse direction of the system, the liquid guide trough has a first side wall for enclosing the atomization chamber at one side, the first liquid inlet hole and the air exchange hole are arranged on the first side wall, and the first liquid inlet hole and the air exchange hole both in fluid communication the liquid guide trough with the atomization chamber; the air exchange hole is in fluid communication with the external atmosphere of the system, and along the height direction of the system, the air exchange hole is located above the first liquid inlet hole.
2. The aerosol provision system according to claim 1 , wherein, at the position where the liquid guide trough is located, the liquid inlet channel has a second side wall arranged face to face with the first side wall along the transverse direction of the system; there is a first distance along the longitudinal direction of the system between the air exchange hole and the first liquid inlet hole, there is a second distance along the transverse direction of the system between the air exchange hole and the second side wall, and the first distance is not less than the second distance.
3. The aerosol provision system according to claim 2, wherein the first distance between the air exchange hole and the first liquid inlet hole is 0 ~ 5 mm.
4. The aerosol provision system according to claim 3, wherein the first distance between the air exchange hole and the first liquid inlet hole is 0.2 ~ 3 mm.
5. The aerosol provision system according to any preceding claim, wherein the hole diameter of the air exchange hole ranges from 0.5 ~ 2 mm.
6. The aerosol provision system according to claim 5, wherein the hole diameter of the air exchange hole is 0.5 mm.
7. The aerosol provision system according to any preceding claim, wherein the cross- sectional area of the air exchange hole on the side near the atomization chamber is greater than that on the side near the liquid guide trough.
8. The aerosol provision system according to claim 7, wherein along the liquid inlet direction, the cross-sectional area of the air exchange hole gradually increases.
9. The aerosol provision system according to any preceding claim, wherein a one-way valve is provided within the air exchange hole, and the one-way valve is configured to allow gas to enter the side near the liquid guide trough from the side near the atomization chamber through the air exchange hole.
10. The aerosol provision system according to any preceding claim wherein the air exchange hole is in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes.
11. The aerosol provision system according to any preceding claim, wherein the number of the air exchange holes includes 2.
12. The aerosol provision system according to any preceding claim, wherein a surface of the first side wall on the side facing the atomization chamber is provided with an air trough, the air trough is recessed on the surface and extends along the surface in the length direction, one end of the air trough is in fluid communication with the air exchange hole, and the other end of the air trough is in fluid communication with the external atmosphere.
13. The aerosol provision system according to claim 12, wherein the width of the trough mouth of the air trough is smaller than the width of the trough bottom of the air trough.
14. The aerosol provision system according to claim 13, wherein the width of the air trough shows an increasing trend along the depth direction from the trough mouth to the trough bottom.
15. The aerosol provision system according to claim 13, wherein the air trough forms multiple segments of trough bodies along the depth direction, and the width of the trough body near the trough bottom is greater than that near the trough mouth.
16. The aerosol provision system according to claim 15, wherein a stepped surface is formed between the multiple segments of trough bodies.
17. The aerosol provision system according to claim 12, wherein in the same plane, the air trough is non-linear in shape.
18. The aerosol provision system according to claim 12, wherein the air trough has multiple segments located in different planes, with height differences or angles between different planes.
19. The aerosol provision system according to claim 18, wherein the air trough is S- shaped in shape.
20. The aerosol provision system according to any of claims 12-19, wherein the air trough is further provided with at least one blocking element therein, the at least one blocking element is arranged on a side wall or the trough bottom of the air trough, there is a gap between the at least one blocking element and the side wall or trough bottom of the air trough that allows gas to pass through, or a gap arranged on the at least one blocking element that allows gas to pass through.
21. The aerosol provision system according to claim 20, wherein the at least one blocking element is arranged on the side wall of the air trough.
22. The aerosol provision system according to claim 20, wherein there are a plurality of blocking elements, and the plurality of blocking elements is cross arranged on two opposite side walls of the air trough.
23. The aerosol provision system according to claim 20, wherein one end of the or each blocking element is in contact with the trough bottom of the air trough.
24. The aerosol provision system according to any preceding claim, wherein the first liquid inlet hole is in any one of circular, square, rectangular, rhombic, trapezoidal, triangular, or polygonal shapes.
25. The aerosol provision system according to any preceding claim, wherein the cross- sectional area of the first liquid inlet hole on the side near the liquid guide trough is greater than that on the side near the atomization chamber.
26. The aerosol provision system according to claim 25, wherein along the liquid inlet direction, the cross-sectional area of the first liquid inlet hole gradually decreases.
27. The aerosol provision system according to claim 25, wherein the first liquid inlet hole is composed of at least two segments of hole bodies along the liquid inlet direction, and the hole diameter of one end of the hole body near the atomization chamber is smaller than that of the other end.
28. The aerosol provision system according to any preceding claim, wherein a groove is provided at a part of an edge on the side of the first liquid inlet hole near the atomization chamber, and the cross-sectional area of the groove is greater than that of the first liquid inlet hole.
29. The aerosol provision system according to any preceding claim, wherein the liquid inlet channel further comprises an annular groove arranged on an upper surface of the support, the upper surface of the support faces a liquid storage chamber, and the annular groove is in fluid communication with the liquid guide trough.
30. The aerosol provision system according to claim 31 , wherein the system further comprises a sealing element for sealing between the support and the liquid storage chamber, and the sealing element is provided with a second liquid inlet hole in fluid communication with the annular groove.
31. The aerosol provision system according to any preceding claim, wherein at least a part of the liquid inlet channel is enclosed by the first side wall of the liquid guide trough and an inner wall of a housing of the system.
32. The aerosol provision system according to claim 2 or any claim dependent thereon, wherein the height of the second side wall is smaller than that of the first side wall, so that the liquid inlet channel in this part of region is formed by the inner wall of the housing of the system and the first side wall.
PCT/GB2024/053092 2023-12-16 2024-12-12 Aerosol provision system Pending WO2025125806A1 (en)

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CN2023117509041 2023-12-16
CN202311750904.1A CN120154141A (en) 2023-12-16 2023-12-16 Aerosol supply system

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211910515U (en) * 2019-12-17 2020-11-13 深圳市合元科技有限公司 Atomizers and Electronic Cigarettes
CN213587425U (en) * 2020-09-15 2021-07-02 深圳市合元科技有限公司 Electronic Cigarettes and Electronic Cigarettes
CN113786011A (en) * 2020-08-31 2021-12-14 深圳麦克韦尔科技有限公司 Electronic atomization device and atomizer thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211910515U (en) * 2019-12-17 2020-11-13 深圳市合元科技有限公司 Atomizers and Electronic Cigarettes
CN113786011A (en) * 2020-08-31 2021-12-14 深圳麦克韦尔科技有限公司 Electronic atomization device and atomizer thereof
CN213587425U (en) * 2020-09-15 2021-07-02 深圳市合元科技有限公司 Electronic Cigarettes and Electronic Cigarettes

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