Electronic atomization device

Abstract

The invention provides an electronic atomization device which comprises a liquid storage cavity and a heating element. A first air inlet, an air outlet, and an airflow channel located between the first air inlet and the air outlet; the air flow channel is divided into a first part located on the first side of the separator and a second part located on the second side of the separator by the separator; the second gas inlet is in gas communication with the first part and the second part; the airflow sensor is used for sensing airflow flowing through the airflow channel; the airflow sensor comprises a first sensing face and a second sensing face which are arranged on the first part and the second part respectively and are opposite to each other, and the first sensing face is communicated with airflow through the second air inlet and the second sensing face. According to the electronic atomization device, when a user sucks when the first air inlet is closed, the pressure sensed by the first sensing face of the airflow sensor is basically the same as the pressure sensed by the second sensing face of the airflow sensor, and it is beneficial to preventing false triggering.

Description

Technical Field

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

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As an example, there are electronic atomization devices, which typically contain a liquid that is heated to vaporize it, thereby producing an inhalable aerosol. A known electronic atomization device has an air inlet and an airflow sensor arranged at a distal end; the airflow sensor has a first side and a second side that are airflow-isolated from each other; wherein the first side is connected to an airflow channel passing through the electronic atomization device to sense the pressure in the airflow channel during inhalation, the second side is connected to the outside atmosphere to sense the pressure of the outside atmosphere, and the user's inhalation is determined when the difference between the pressure sensed by the first side and the outside atmospheric pressure sensed by the second side is greater than a preset threshold. This type of electronic atomization device usually closes the air inlet when it is not desired to output aerosol to prevent air from entering and exiting. When the user, especially minors, inhales when the air inlet is closed, although airflow through the electronic atomization device and aerosol output will not be formed, the first side of the airflow sensor can still be triggered by the pressure drop in the airflow channel caused by the inhalation action, thereby forming a pressure difference exceeding a threshold with the second side, posing a safety hazard. Summary of the invention

[0004] An embodiment of the present application provides an electronic atomization device, comprising:

[0005] A liquid storage chamber, used for storing a liquid matrix;

[0006] a heating element for heating the liquid matrix to generate an aerosol;

[0007] a first air inlet, an air outlet, and an air flow channel between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;

[0008] a partition member, dividing the airflow channel into a first portion located on a first side of the partition member and a second portion located on a second side of the partition member;

[0009] a second gas inlet, gas connecting the first part and the second part;

[0010] An airflow sensor is used to sense the airflow flowing through the airflow channel; the airflow sensor includes a first sensing surface and a second sensing surface respectively arranged in the first part and the second part and opposite to each other, and the first sensing surface is connected to the airflow through the second air inlet and the second sensing surface.

[0011] In some embodiments, the cross-sectional area of ​​the first air inlet is greater than the minimum cross-sectional area of ​​the second air inlet; more preferably, the cross-sectional area of ​​the first air inlet is greater than 1.5 times the minimum cross-sectional area of ​​the second air inlet.

[0012] In some embodiments, the minimum cross-sectional area of ​​the second air inlet is between 0.8 mm 2 ~2.3mm 2 ; Preferably, there are more than one second air inlet.

[0013] In some embodiments, a cross-sectional area of ​​at least a portion of the second air inlet decreases along the air flow direction.

[0014] In some embodiments, the second air inlet is configured to cause a pressure drop during use that can drive the sensor to start; preferably, the second air inlet is configured to form a pressure difference between 100-600 Pa during use.

[0015] In some embodiments, it also includes:

[0016] A movable sealing element is arranged to be movable between a closed position and an open position to selectively close the first air inlet in the closed position and to open the first air inlet in the open position.

[0017] In some embodiments, the axis of the airflow sensor is substantially parallel to the longitudinal arrangement of the electronic atomization device;

[0018] And / or, the first sensing surface and the second sensing surface are arranged opposite to each other in the longitudinal direction of the electronic atomization device;

[0019] And / or, the airflow sensor is arranged away from the longitudinal center axis of the electronic atomization device.

[0020] In some embodiments, it also includes:

[0021] A proximal end and a distal end facing each other in the longitudinal direction; the air outlet is arranged at the proximal end, and the first air inlet is arranged at the distal end;

[0022] The distance between the airflow sensor and the proximal end is smaller than the distance between the airflow sensor and the distal end.

[0023] In some embodiments, the heating element is arranged between the air outlet and the partition.

[0024] In some embodiments, it also includes:

[0025] A battery cell, used for providing electric power; along the longitudinal direction of the electronic atomization device, the battery cell and the liquid storage chamber are arranged at intervals;

[0026] The airflow sensor is located between the battery core and the liquid storage chamber; or the airflow sensor is located between the first air inlet and the battery core.

[0027] In some embodiments, it also includes:

[0028] A bracket for accommodating or holding the heating element;

[0029] The airflow sensor and the partition are accommodated or held in the bracket and are arranged away from the liquid storage chamber.

[0030] In some embodiments, the second air inlet is a through hole on the isolation member; and / or at least a portion of an inner surface of the second air inlet is defined by the isolation member.

[0031] In some embodiments, the partition wraps a portion of the surface of the airflow sensor and avoids or exposes at least a portion of the first sensing surface and the second sensing surface.

[0032] Another embodiment of the present application further provides an electronic atomization device, comprising:

[0033] A liquid storage chamber, used for storing a liquid matrix;

[0034] a heating element for heating the liquid matrix to generate an aerosol;

[0035] A first air inlet, an air outlet, and an air flow channel located between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;

[0036] An airflow sensor comprises a first sensing surface and a second sensing surface opposite to each other, and senses a difference between a pressure sensed by the first sensing surface and a pressure sensed by the second sensing surface;

[0037] a partition wrapping a portion of the airflow sensor and exposing or avoiding the first sensing surface and the second sensing surface; the airflow channel includes at least one second air inlet passing through the partition;

[0038] The first sensing surface and the second sensing surface of the airflow sensor are in airflow communication via the at least one second air inlet.

[0039] Another embodiment of the present application further provides an electronic atomization device, comprising:

[0040] A liquid storage chamber, used for storing a liquid matrix;

[0041] a heating element for heating the liquid matrix to generate an aerosol;

[0042] A battery cell, used to supply power to the heating element;

[0043] an air inlet, and an air flow channel between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet;

[0044] An airflow sensor is used to sense changes in airflow flowing through the electronic atomization device; along the longitudinal direction of the electronic atomization device, the airflow sensor is arranged between the heating element and the battery core; the airflow sensor includes a first sensing surface and a second sensing surface opposite to each other along the longitudinal direction of the electronic atomization device; the first sensing surface is connected to the airflow at the air outlet, and the second sensing surface is connected to the airflow at the first air inlet.

[0045] In the above electronic atomization device, the first sensing surface and the second sensing surface of the airflow sensor are respectively connected to the first port and the second port of the second air inlet of the partition. When the user inhales when the air inlet is closed, the pressure sensed by the first sensing surface and the pressure sensed by the second sensing surface are basically the same, which is beneficial for preventing false triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0047] Figure 1 This is a schematic structural diagram of an electronic atomization device provided by an embodiment from one perspective;

[0048] Figure 2 yes Figure 1 Schematic diagram of the disassembled operating mechanism and the end cover before assembly;

[0049] Figure 3 yes Figure 2 The exploded diagram of the middle operating mechanism and the end cover before assembly from another perspective;

[0050] Figure 4 yes Figure 1 A cross-sectional schematic diagram of the electronic atomization device from one perspective;

[0051] Figure 5 yes Figure 4 A schematic diagram of the sealing element of the operating mechanism moving to a closed position;

[0052] Figure 6 yes Figure 4 A cross-sectional schematic diagram of a view from one angle after some parts of the electronic atomization device are assembled on the bracket;

[0053] Figure 7 yes Figure 6 A cross-sectional schematic diagram of a view from one perspective after the middle airflow sensor and the partition are assembled;

[0054] Figure 8 yes Figure 6 A schematic diagram showing another perspective of the airflow sensor and the partition after assembly;

[0055] Fig. 9 yes Figure 6 Schematic diagram of another perspective after the airflow sensor and divider are assembled. DETAILED DESCRIPTION

[0056] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] The present application proposes an electronic atomization device for atomizing a liquid matrix to generate an aerosol.

[0058] Figure 1 and Figure 2 A schematic diagram of an electronic atomization device 100 of one embodiment is shown, including several components disposed within an outer body or housing. The overall design of the outer body or housing may vary, and the type or configuration of the outer body that may define the overall size and shape of the electronic atomization device 100 may vary. Typically, the elongated body may be formed by a single integral housing, or the elongated housing may be formed by two or more separable bodies.

[0059] For example, the electronic atomization device 100 can have a control body at one end, which has a shell containing one or more reusable components (e.g., a battery such as a rechargeable battery and / or a rechargeable supercapacitor, and various electronic devices for controlling the operation of the product), and an outer body or housing for suction at the other end.

[0060] In some embodiments, the outer body or housing of the electronic atomization device 100 substantially defines the outer surface of the electronic atomization device 100; Figure 1 to Figure 2In the specific embodiment shown, the electronic atomization device 100 includes:

[0061] The housing 10 may include one or more reusable components; the housing 10 has a proximal end 110 and a distal end 120 opposite to each other in the longitudinal direction; in use, the proximal end 110 is the end close to the user for suction; the distal end 120 is the end away from the user;

[0062] In some examples, all or only a portion of housing 10 may be formed from a metal or alloy such as stainless steel, aluminum, or other suitable materials including various plastics (eg, polycarbonate), metal-plating over plastic, ceramics, and the like.

[0063] In some embodiments, the housing 10 is formed from several parts. And in some embodiments, the housing 10 is open at the distal end 120. Figures 3 to 5 As shown, the housing 10 comprises:

[0064] The first shell 11 and the second shell 12 ; wherein the first shell 11 is close to or defines a proximal end 110 , and the second shell 12 is close to or defines a distal end 120 .

[0065] according to Figures 3 to 5 As shown, the electronic atomization device 100 also includes:

[0066] The battery cell 70 is used for power supply and is arranged in the second shell 12 .

[0067] exist Figures 3 to 5 In the illustrated embodiment, the electronic atomization device 100 further includes:

[0068] The end cap 20 is combined with and closes the distal end 120 of the housing 10 / second housing 12; the end cap 20 can be removed and disassembled from the distal end 120 of the housing 10 / second housing 12.

[0069] After the distal end 120 of the second shell 12 is removed or disassembled, the distal end 120 of the outer shell 10 is opened, so that the battery cell 70 can be taken out or replaced from the distal end 120 of the outer shell 10 / the second shell 12. Specifically, after the end cover 20 is removed, the distal end 120 of the outer shell 10 is opened, so that the battery cell 70 can be taken out or removed from the distal end 120 of the outer shell 10 by slightly shaking or gently swinging.

[0070] See also Figures 3 to 5 As shown, the rear end cover 20 at least partially extends from the distal end 120 into the housing 10 / the second shell 12 ; and a first air inlet 21 is arranged on the end cover 20 for allowing external air to enter the electronic atomization device 100 .

[0071] To detachably connect the end cap 20 to the distal end 120 of the housing 10, see Figures 3 to 5 As shown, the electronic atomization device 100 also includes:

[0072] The connecting element 19 is located in the housing 10 and arranged at the distal end 120; the connecting element 19 and the second shell 12 of the housing 10 are tightly connected to each other by riveting or interference fit; in use, the end cap 20 is detachably connected to the connecting element 19, thereby establishing a detachable connection with the housing 10. In an embodiment, the connecting element 19 is made of polymer plastic or a rigid alloy such as stainless steel. For example, in some embodiments, a first connecting structure such as a cam is arranged on the connecting element 19, and a second connecting structure such as a slot is arranged on the end cap 20; and in use, a detachable connection is established between the end cap 20 and the connecting element 19 through the cooperation of the first connecting structure such as a cam and the second connecting structure such as a slot.

[0073] according to Figures 1 to 5 As shown, the electronic atomization device 100 also includes:

[0074] The operating mechanism 30 is at least partially accommodated and installed in the end cover 20 , and can be operated by a user to selectively open and close the first air inlet 21 on the end cover 20 .

[0075] according to Figures 1 to 5 As shown, the operating mechanism 30 includes:

[0076] An operating element 31 , a sealing element 32 , a connecting element 34 and an elastic element 33 .

[0077] After assembly, the operating element 31 is mainly installed and accommodated in the end cover 20, and at least part of the operating element 31 is exposed outside the end cover 20, so as to be operated by the user, such as pressing and rotating operation;

[0078] A sealing element 32, which can be moved under the driving of the operating element 31 to selectively close or open the first air inlet 21;

[0079] a connecting element 34, connecting the operating element 31 with the sealing element 32 so that a user can drive the movement of the sealing element 32 by operating the operating element 31;

[0080] The elastic element 33 is arranged between the end cover 20 and the operating element 31 .

[0081] In an embodiment, the user operates the operating element 31 to drive the sealing element 32 to move; for example, the movement may include longitudinal movement of the end cap 20 and / or the housing 10 and / or rotation around the central axis of the end cap 20 and / or the housing 10.

[0082] according to Figures 3 to 5 As shown in FIG. 1 , the connecting element 34 is a common countersunk screw, which penetrates the sealing element 32 and is connected to the operating element 31 through threads.

[0083] according to Figures 3 to 5 As shown in , the sealing element 32 is provided with an avoidance notch 321; and the sealing element 32 can be rotated around the central axis of the end cover 20 and / or the housing 10 by the operating element 31, so that the avoidance notch 321 is aligned with or staggered with the first air inlet 21 on the end cover 20, thereby selectively opening or closing the first air inlet 21. And in some embodiments, the sealing element 32 is made of a flexible material such as silicone, thermoplastic elastomer, etc. Specifically, for example Figure 4 The sealing element 32 is in the open position, and the avoidance gap 321 is aligned with the first air inlet 21 of the end cover 20, thereby opening the first air inlet 21 to allow external air to enter the electronic atomization device 100; and the sealing element 32 is driven to rotate around its central axis by the user rotating the operating element 31. Figure 5 As shown by the middle arrow P11 , when rotating to the closed position, the avoidance notch 321 is offset from the first air inlet 21 of the end cover 20 , so that the first air inlet 21 is blocked or blocked by the sealing element 32 , thereby closing the first air inlet 21 .

[0084] In some embodiments, a first locking structure such as a cam is arranged on the sealing element 32; accordingly, a second locking structure such as a groove may be arranged on the end cover 20; when the sealing element 32 is located at the open position / closed position of opening the first air inlet 21, the first locking structure is coupled to the second locking structure to form a connection to form a locked state, thereby stably maintaining the sealing element 32 in the open position and / or the closed position to prevent the sealing element 32 from rotating between the open position and the closed position. And in an embodiment, the sealing element 32 can be operated by a user by pressing the operating element 31 to move the sealing element 32 in the longitudinal direction, thereby releasing the locked state formed by the connection between the first locking structure and the second locking structure in the open position and / or the closed position, thereby allowing the sealing element 32 to rotate between the open position and the closed position.

[0085] according to Figure 2 and Figure 3 As shown in the figure, a plurality of first limiting protrusions 23 extending in the longitudinal direction are arranged on the inner surface of the end cover 20; a second limiting protrusion 311 is arranged on the outer surface of the operating element 31; when the user drives the operating element 31 to rotate from the closed position to the open position, or from the open position to the closed position by fingers, the second limiting protrusion 311 and the first limiting protrusion 23 abut to form a limit, so as to limit the rotation angle of the operating element 31 in the rotation operation.

[0086] according to Figures 3 to 5 As shown in , the elastic element 33 is used to provide elastic force to bias the sealing element 32 toward the sealing element 32 away from the proximal end 110, so that the sealing element 32 drives the sealing element 32 to bias toward the locked state or remain in the locked state in the open position and / or the closed position. Figures 3 to 5 In the specific embodiment shown in FIG. 1 , the elastic element 33 comprises a linear spring; and in assembly, the elastic element 33 elastically abuts between the end cover 20 and the operating element 31 .

[0087] according to Figures 3 to 5 As shown, the electronic atomization device 100 also includes:

[0088] An air outlet 113 for the user to inhale; the air outlet 113 is located at the proximal end 110 of the housing 10 and is defined or formed by the first housing 11;

[0089] A liquid storage chamber 112 for storing a liquid matrix, and an atomizing assembly for drawing the liquid matrix from the liquid storage chamber 112 and heating and atomizing the liquid matrix. To facilitate vaporization and output, the liquid storage chamber 112 and the atomizing assembly are both arranged near the proximal end 110. The electronic atomization device 100 also includes an aerosol output tube 111 arranged in the longitudinal direction, the aerosol output tube 111 at least partially extending in the liquid storage chamber 112, and the liquid storage chamber 112 is formed by the space between the aerosol output tube 111 and the inner surface of the housing 10 / first housing 111. The end of the aerosol output tube 111 relative to the proximal end 110 is connected to the air outlet 113 to output the aerosol generated by the atomization of the atomizing assembly to the air outlet 113 for inhalation.

[0090] according to Figure 3 to Figure 4 As shown in , the aerosol output tube 111 and the housing 10 / the first shell 111 are integrally molded with a moldable material, and the liquid storage cavity 112 formed after preparation is closed on the side of the proximal end 110 and open on the side facing the distal end 120.

[0091] according to Figures 3 to 5 As shown in the figure, a first liquid-conducting element 51 is also provided in the housing 10 / first shell 111. The first liquid-conducting element 51 is a layer of sheet-like or block-like fibers arranged perpendicular to the longitudinal direction of the housing 10 / first shell 111. In some embodiments, the first liquid-conducting element 51 is made of a flexible capillary fiber material, such as natural cotton fibers, non-woven fibers, etc.; specifically, the first liquid-conducting element 51 includes a sheet of liquid-conducting cotton. Or in some other variations, the first liquid-conducting element 51 includes artificial cotton, or hard artificial cotton or artificial foam made of filamentous polyurethane. For example, the first liquid-conducting element 51 uses 138# hard synthetic organic polymer fibers with a viscosity of 0.1 to 0.9 mg / mm 3The density of the first liquid-conducting element 51 is about 0.04-0.06g when not soaked in liquid. The first liquid-conducting element 51 is made of oriented fibers that are basically oriented along the length direction, width direction or radial direction. The oriented fibers are arranged in the length direction or width direction of the first liquid-conducting element 51, so that the first liquid-conducting element 51 has a strong bending resistance and is hard. Specifically, for example, the first liquid-conducting element 51 is hard artificial cotton including oriented polyester fibers, or hard artificial cotton or artificial foam made of filamentous polyurethane.

[0092] See also Figures 3 to 5 As shown, the first liquid-conducting element 51 is accommodated and held in the bracket 60. Figures 3 to 5 As shown, the first liquid guiding element 51 is adjacent to the upper surface of the liquid storage chamber 112 and is in fluid communication with the liquid storage chamber 112, thereby absorbing the liquid matrix. Figures 3 to 5 As shown, the first liquid guiding element 51 is configured to be annular.

[0093] according to Figures 3 to 6 As shown, a tubular element 14 is also disposed in the housing 10 / first housing 11; the tubular element 14 is an independent component, preferably made of a thinner rigid material; as a suitable example, the tubular element 14 is a ceramic tube or a stainless steel tube, etc.; after the tubular element 14 axially penetrates the first liquid-conducting element 51, it is connected to the aerosol output tube 111 by interference fit, tight fit, or interference fit, and a seal is formed between them while being tightly connected. After assembly, the first liquid-conducting element 51 is arranged around the tubular element 14.

[0094] See also Figures 3 to 6 As shown, the atomizing assembly is accommodated and assembled in the tubular element 14. The tubular element 14 is provided with a plurality of circumferentially spaced through-holes 141. The atomizing assembly is in fluid communication with the first liquid-conducting element 51 through the through-holes 141 to receive the liquid matrix. Figures 3 to 5In the illustrated embodiment, the atomization assembly includes a second liquid-conducting element 52. In some embodiments, the second liquid-conducting element 52 is flexible, for example, it is made of flexible fibers such as cotton fibers, non-woven fabrics or sponges; or in other embodiments, the second liquid-conducting element 52 is rigid, for example, it is made of a rigid porous body material, such as porous ceramics, porous glass, etc. In an embodiment, the second liquid-conducting element 52 is configured to be tubular or cylindrical and arranged along the longitudinal direction of the housing 10 / first shell 11; the second liquid-conducting element 52 is coaxial with the tubular element 14 and is located inside the tubular element 14. Or in some other variant embodiments, the second liquid-conducting element 52 may also include a rigid porous body element, such as porous ceramics or porous glass, etc. In an embodiment, the outer surface of the second liquid-conducting element 52 in the radial direction covers the perforation 141 of the tubular element 14, and then the outer surface of the second liquid-conducting element 52 is configured as a liquid-absorbing surface to receive and absorb the liquid matrix passing through the first liquid-conducting element 51 through the perforation 141. According to Figure 4 and Figure 5 As shown by the middle arrow R1, the liquid matrix in the liquid storage chamber 112 is sucked through the upper surface of the first liquid guiding element 51, and then flows to the through hole 141 of the tubular element 14 through the lower surface of the first liquid guiding element 51, and finally passes through the through hole 141 of the tubular element 14 and is sucked by the second liquid guiding element 52. The inner surface of the second liquid guiding element 52 along the radial direction is configured as an atomization surface, and the atomization surface is combined / fitted / abutted against the heating element 40; then, after the liquid matrix is ​​transferred to the atomization surface, it is heated and atomized by the heating element 40 to generate aerosol and released.

[0095] See also Figures 3 to 6 In the illustrated embodiment, the heating element 40 is arranged to extend in the longitudinal direction of the second liquid-conducting element 52, and the heating element 40 is arranged coaxially with the second liquid-conducting element 52. In some optional embodiments, the heating element 40 is a resistance heating net, a resistance heating coil, etc. In this embodiment, the heating element 40 is a heating element wound by a sheet or mesh substrate; the wound heating element 40 is a non-closed tubular shape in the circumferential direction, but has a cylindrical shape with a side opening in the longitudinal direction. Conductive pins are welded or arranged at both ends of the heating element 40 to guide current on the heating element 40.

[0096] In some other variations, the heating element 40 may be combined with the second liquid-conducting element 52 by printing, deposition, sintering or physical assembly. In some other variations, the second liquid-conducting element 52 may have a flat surface or a curved surface for supporting the heating element 40, and the heating element 40 is formed on the flat surface or the curved surface of the second liquid-conducting element 52 by mounting, printing, deposition or the like. Or in some other variations, the heating element 40 is a conductive track formed on the surface of the second liquid-conducting element 52. In some other variations, the conductive track of the heating element 40 may be in the form of a printed circuit formed by printing. In some other variations, the heating element 40 is a patterned conductive track. In some other variations, the heating element 40 is planar. In some other variations, the heating element 40 is a conductive track that extends in a circuitous, meandering, reciprocating or bending manner.

[0097] See also Figures 3 to 6 As shown, the support 60 also provides support and fixation for the first liquid-conducting element 51 and the tubular element 14. The support 60 is generally cylindrical in shape. The support 60 is rigid, for example, the support 60 is made of hard polymer plastic.

[0098] See also Figures 3 to 5 As shown, the housing 10 is also provided with:

[0099] The retaining element 18 is located in the second housing 12 and between the battery core 70 and the bracket 60 in the longitudinal direction; the retaining element 18 is used to support and retain the elastic electrical contact 17; and the retaining element 18 is used to at least partially surround and retain the battery core 70. Figures 3 to 5 As shown, the retaining element 18 is generally annular in shape and arranged in the longitudinal direction of the second housing 12. In some embodiments, the retaining element 18 is rigid, for example, made of an organic polymer plastic.

[0100] After assembly, at least a portion of the retaining element 18 extends into the bracket 60 and supports the airflow sensor 15 and / or the partition 16 mounted in the bracket 60 .

[0101] according to Figures 3 to 5 As shown, the electronic atomization device 100 also includes:

[0102] The elastic conductive element 17 is mounted and held on the holding element 18. In some embodiments, the elastic conductive element 17 and the holding element 18 are integrally prepared by metal insert injection molding or in-mold injection molding, so that they are tightly combined. Or in some other embodiments, the elastic conductive element 17 and the holding element 18 are tightly combined by mechanical connection; for example, the holding element 18 is provided with a clamping mouth, groove or other fastening structure for clamping or fastening the conductive element 17, and the conductive element 17 is tightly held on the holding element 18. In some embodiments, the elastic conductive element 17 includes a metal or alloy with low resistivity; for example, the conductive element 17 includes gold, silver, copper or an alloy thereof.

[0103] In some embodiments, the elastic conductive element 17 is formed by bending a sheet or a conductor precursor; in some embodiments, the elastic conductive element 17 is in a tortuous shape; in some embodiments, the elastic conductive element 17 is formed by tortuously bending a copper sheet. In some embodiments, the tortuous conductive element 17 has an approximately S-shaped shape; or in some other embodiments, the tortuous conductive element 17 has an approximately U-shaped shape, etc. In some embodiments, at least one bend-forming recess is defined in the elastic conductive element 17; the retaining element 18 is embedded or stuck in at least one recess.

[0104] After assembly, the battery cell 70 elastically rests on the conductive element 17, thereby forming conductivity. Also, the airflow sensor 15 is welded or electrically connected to the conductive element 17 to form conductivity. After assembly, the conductive element 17 is at least partially used to guide current between the battery cell 70 and the airflow sensor 15 / heating element 40.

[0105] See also Figures 3 to 6 As shown, the airflow sensor 15 is, for example, a microphone sensor or a MEMS sensor, etc. The airflow sensor 15 is substantially cylindrical in shape, and the axis of the airflow sensor 15 is substantially parallel to the longitudinal direction of the electronic atomization device 100 .

[0106] See also Figures 3 to 6 As shown, the bracket 60 is generally arranged to extend longitudinally along the electronic atomization device 100; the bracket 60 has a first end facing or close to the liquid storage chamber 112, and a second end away from the first end; the bracket 60 is basically a cylindrical shape extending from the first end to the second end. The bracket 60 is rigid, for example, the bracket 60 is made of hard polymer plastic. Figure 6 to Figure 6 As shown, in some embodiments, the bracket 60 includes a first support portion 610, a second support portion 620 and a third support portion 630 arranged in sequence along the longitudinal direction; wherein the third support portion 630 is connected to the retaining element 18 by mechanical connection or fastening.

[0107] according to Figures 3 to 6 As shown, after assembly, the first support portion 610 surrounds the first liquid guiding element 51. The first support portion 610 is interference fit with the housing 10 / first shell 11 near the liquid storage chamber 112. A sealing ring such as an O-ring is arranged around the first support portion 610 to provide a seal between the first support portion 610 and the housing 10 / first shell 11. Figures 3 to 6 As shown, the third support portion 630 establishes a mechanical connection and interference fit with the housing 10 / first shell 11; and a sealing ring such as an O-ring is arranged outside the third support portion 630 to provide a seal between the third support portion 630 and the housing 10 / first shell 11. And, the retaining element 18 at least partially extends into the third support portion 630 and establishes a mechanical connection with the third support portion 630.

[0108] according to Figures 3 to 6 As shown, the second support portion 620 of the bracket 60 is further provided with a plurality of flanges 621 surrounding the second support portion 620 in the circumferential direction, and grooves are defined between adjacent flanges 621. Figures 3 to 6 As shown, the flange 621 is arranged between the sealing ring outside the first supporting portion 610 and the sealing ring outside the third supporting portion 630 along the longitudinal direction of the bracket 60 .

[0109] according to Figures 3 to 6 In the illustrated embodiment, the first accommodating cavity 611 includes a first section 6111 and a second section 6112 arranged in sequence along the longitudinal direction; wherein the first section 6111 is close to the first end of the bracket 60, and the first section 6111 is a cone or wide-mouthed shape with an inclined inner surface; the second section 6112 is a columnar shape with a substantially constant diameter. In this embodiment, the first liquid-conducting element 51 is accommodated and retained in the second section 6112 of the first accommodating cavity 611; and the first liquid-conducting element 51 avoids the conical first section 6111, and the liquid matrix in the liquid storage cavity 112 of the conical first section 6111 is guided to the upper surface of the first liquid-conducting element 51 and absorbed. In this embodiment, after assembly, the first liquid-conducting element 51 is not flush with the first end of the bracket 60, for example, Figure 6 There is a spacing of about 5 to 10 mm between them.

[0110] according to Figures 3 to 6As shown, a second accommodating chamber 627 is defined in the second support portion 620 for at least partially installing and accommodating the tubular element 14 and the atomizer assembly. Specifically, after assembly, the tubular element 14 is at least partially inserted into the second accommodating chamber 627 of the bracket 60 after passing through the first accommodating chamber 611; and, the tubular element 14 and the bracket 60 are sealed by interference fit. And, there is no flexible sealing element between the tubular element 14 and the bracket 60. The first end of the bracket 60 is open, or has a first opening; the first liquid-conducting element 51 is received in the first accommodating chamber 611 from the first end through the first opening; and / or, the tubular element 14 and / or the atomizer assembly passes through the first accommodating chamber 611 from the first end through the first opening to be received in the second accommodating chamber 627.

[0111] according to Figures 3 to 6 As shown, the third supporting portion 630 of the bracket 60 is also arranged with:

[0112] The third accommodating chamber 631 is used to accommodate or install the airflow sensor 15 and the partition 16. The airflow sensor 15 is accommodated and installed in the third accommodating chamber 631 of the bracket 60, and is arranged away from the liquid storage chamber 112. Figures 3 to 6 In the embodiment of the present invention, the airflow sensor 15 is in the shape of a sheet, a disk or a column; the axis of the airflow sensor 15 is parallel to the longitudinal arrangement of the bracket 60. The separator 16 is flexible, for example, made of silicone or thermoplastic elastomer, and wraps the airflow sensor 15. Figures 3 to 7 As shown, at least one second air inlet 161 is arranged on the partition 16 and runs through the partition 16 in the longitudinal direction, so as to allow air to pass through the partition 16. Figures 3 to 6 In the embodiment of the invention, the airflow sensor 15 is arranged away from the longitudinal center axis of the electronic atomization device 100; for example, Figure 4 and Figure 5 In FIG. 1 , the air flow sensor 15 is arranged close to the left side.

[0113] according to Figures 3 to 6 As shown, an airflow channel is arranged in the electronic atomization device 100, defining an airflow path from the first air inlet 21 through the atomization assembly to the air outlet 113, so as to deliver the aerosol to the air outlet 113 for the user to inhale. The airflow channel in the electronic atomization device 100 is defined by multiple components, such as Figures 3 to 6 As shown by the arrow R2.

[0114] exist Figure 6 As shown in FIG. , the bracket 60 is provided with:

[0115] The first channel portion 623 extends from the third accommodating cavity 631 to the outer surface of the second supporting portion 620 of the bracket 60 and defines a communication port 624 on the outer surface of the second supporting portion 620;

[0116] The second channel portion 625 extends from the outer surface of the second support portion 620 to the second accommodating cavity 627. Thus, during suction, the airflow path passing through the bracket 60 is as follows: Figure 6 As shown by the middle arrow R2, air enters from the third accommodating chamber 631 to the outer surface of the second supporting portion 620 through the first channel portion 623, flows around the bracket 60 in the groove on the outer surface of the second supporting portion 620 to the second channel portion 625, and then enters the second accommodating chamber 627 through the second channel portion 625 to carry the aerosol generated by the atomization component to be output.

[0117] The complete airflow path of the electronic atomization device 100 during inhalation is shown in Figures 3 to 6 As shown by the middle arrow R2, when the sealing element 32 of the operating mechanism 30 moves to the open position, the external air entering through the first air inlet 21 passes through the gap between the battery cell 70 and the housing 10 and the retaining element 18 in sequence and then enters the third accommodating cavity 631 of the bracket 60; then passes through the second air inlet 161 of the partition 16 and flows into the first channel portion 623, and then flows to the second channel portion 625 through the groove on the surface of the bracket 60; finally, it enters the tubular element 14 from the second channel portion 625, and carries the aerosol generated by the atomization component to be delivered from the aerosol output tube 111 to the air outlet 113.

[0118] exist Figures 6 to 9 In the embodiment, the second air inlet 161 is a through hole penetrating the partition 16; or in some other variant embodiments, the second air inlet 161 is a groove located on the outer surface of the partition 16; after the partition 16 is assembled in the bracket 60, the second air inlet 161 is jointly defined by the groove on the surface of the partition 16 and the bracket 60.

[0119] according to Figures 6 to 9 As shown, the partition 16 is basically configured in a cylindrical shape, and the partition 16 is basically adapted to the cross section of the third accommodating cavity 631 of the bracket 60. And, after assembly, the partition 16 has a distance d1 with the top wall of the third accommodating cavity 631 in the longitudinal direction of the bracket 60, and the distance d1 is about 3-5 mm; and the partition 16 has a distance d2 with the second end of the bracket 60, and the distance d2 is about 4-8 mm. Figures 6 to 9 As shown, the second air inlet 161 of the partition 16 has a first port 1611 and a second port 1612 opposite to each other; wherein the first port 1611 is an air outlet port, the first port 1611 is close to and connected to the air outlet 113; the second port 1612 is an air inlet port, the second port 1612 is close to and connected to the first air inlet 21.

[0120] In order to enable the airflow sensor 15 to accurately sense the airflow passing through the electronic atomization device 100 during the user's inhalation, the airflow sensor 15 includes a first sensing surface 151 and a second sensing surface 152 that are opposite to each other in the longitudinal direction of the electronic atomization device 100. The partition 16 wraps the airflow sensor 15 in the circumferential direction and exposes the first sensing surface 151 and the second sensing surface 152. In an embodiment, the first sensing surface 151 and the second sensing surface 152 are isolated from each other. The first sensing surface 151 is connected to the first port 1611 of the second air inlet 161 through the space defined by the spacing d1; and the second sensing surface 152 is connected to the second port 1612 of the second air inlet 161 through the space defined by the spacing d2.

[0121] The first sensing surface 151 and the second sensing surface 152 of the above air flow sensor 15 are connected through the second air inlet 161. When used for suction, the pressure drop sensed by the first sensing surface 151 is greater than the pressure drop sensed by the second sensing surface 152; when the difference between the pressure drop on the first sensing surface 151 and the second sensing surface 152 caused by the suction airflow is greater than the preset threshold, the air flow sensor 15 determines the user's suction action and outputs a trigger signal; the electronic atomization device 100 controls the battery 70 to output power to the heating element 40 to atomize the liquid to generate an aerosol according to the trigger signal of the air flow sensor 15. And when the user inhales when the first air inlet 21 is blocked or closed by the sealing element 32 of the operating mechanism 30, no air flow is formed through the electronic atomization device 100, and the pressures sensed by the first sensing surface 151 and the second sensing surface 152 of the air flow sensor 15 are basically synchronously decreased and equivalent while the suction resistance is large, and the air flow sensor 15 cannot be triggered at this time.

[0122] according to Figure 5 As shown, the airflow sensor 15 is arranged away from the distal end 120. Specifically, the first sensing surface 151 is facing the proximal end 110 and has a first spacing d11 with the proximal end 110; the second sensing surface 152 is facing the distal end 120 and has a second spacing d12 with the distal end 120. The second spacing d12 is greater than the first spacing d11. Accordingly, the airflow sensor 15 is relatively closer to the proximal end 110.

[0123] In some embodiments, for example Figure 7 As shown, the cross-sectional area of ​​the second air inlet 161 is variable; Figure 7At least part of the second air inlet 161 is tapered, and the cross-sectional area of ​​at least part of the second air inlet 161 decreases toward the first port 1611; when the air flows through the second air inlet 161 during suction, turbulence is formed, which is beneficial for promoting the pressure difference between the first sensing surface 151 and the second sensing surface 152. Alternatively, in some other variant embodiments, the cross-sectional area of ​​the second air inlet 161 may be constant.

[0124] exist Figure 7 and Figure 8 In the illustrated embodiment, the number of the second air inlets 161 is two; or in still other variations, the number of the second air inlet 161 may be only one or more.

[0125] In some other embodiments, the minimum cross-sectional area of ​​the second air inlet 161 determines the suction resistance and the pressure drop difference formed during suction, that is, Figure 7 The cross-sectional area of ​​the minimum aperture 1613 of the second air inlet 161 is in the range of 0.8 to 2.3 mm. 2 In some more preferred embodiments, the cross-sectional area of ​​the minimum aperture 1613 of the second air inlet 161 is between 1.0 and 2.26 mm. 2 The following table shows the cross-sectional area of ​​the minimum aperture 1613 of the second air inlet 161, the suction resistance during inhalation, and the pressure difference value on both sides of the airflow sensor 15 in multiple embodiments, which is beneficial for triggering the airflow sensor 15 while maintaining appropriate suction resistance.

[0126]

[0127] In some embodiments, the minimum cross-sectional area of ​​the second air inlet 161 is such that the pressure drop caused by the flow through the second air inlet 161 during use can drive the airflow sensor 15 to start; preferably, the second air inlet 161 is arranged to form a pressure difference between 100-600 Pa during use.

[0128] In some embodiments, the area of ​​the first air inlet 21 is greater than 1.5 times the minimum cross-sectional area of ​​the second air inlet 161. In some preferred embodiments, the area of ​​the first air inlet 21 is greater than 2.5 times the minimum cross-sectional area of ​​the second air inlet 161; or, the area of ​​the first air inlet 21 is greater than 3.5 times the minimum cross-sectional area of ​​the second air inlet 161. In some preferred embodiments, the area of ​​the first air inlet 21 is approximately 4 to 10 mm 2 .

[0129] according to Figures 4 to 9 As shown, the complete airflow channel passing through the electronic atomization device 100 includes:

[0130] The first portion between the first air inlet 21 and the second port 1612 of the second air inlet 161 is mainly defined by the gap between the battery cell 70 and the second housing 12 ;

[0131] The second portion between the first port 1611 of the second air inlet 161 and the air outlet 113 is mainly defined by the bracket 60 and the aerosol output tube 111. In the embodiment, the average cross-sectional area of ​​the second portion is smaller than the average cross-sectional area of ​​the first portion.

[0132] In some embodiments, the length of the second air inlet 161 is about 5 to 12 mm. That is, the partition 16 has a thickness of about 5 to 12 mm.

[0133] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; a first air inlet, an air outlet, and an air flow channel between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet; a partition member, dividing the airflow channel into a first portion located on a first side of the partition member and a second portion located on a second side of the partition member; a second gas inlet, gas connecting the first part and the second part; An airflow sensor is used to sense the airflow flowing through the airflow channel; the airflow sensor includes a first sensing surface and a second sensing surface respectively arranged in the first part and the second part and opposite to each other, and the first sensing surface is connected to the airflow through the second air inlet and the second sensing surface.

2. The electronic atomization device according to claim 1, characterized in that: A cross-sectional area of ​​the first air inlet is greater than a minimum cross-sectional area of ​​the second air inlet.

3. The electronic atomization device according to claim 1 or 2, characterized in that: The minimum cross-sectional area of ​​the second air inlet is between 0.8 mm 2 ~2.3mm 2 .

4. The electronic atomization device according to claim 1 or 2, characterized in that: The cross-sectional area of ​​at least part of the second air inlet decreases along the air flow direction.

5. The electronic atomization device according to claim 1 or 2, characterized in that: The second air inlet is arranged such that a pressure drop caused when in use can drive the sensor to start.

6. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A movable sealing element is arranged to be movable between a closed position and an open position to selectively close the first air inlet in the closed position and to open the first air inlet in the open position.

7. The electronic atomization device according to claim 1 or 2, characterized in that: The axis of the airflow sensor is substantially parallel to the longitudinal arrangement of the electronic atomization device; And / or, the first sensing surface and the second sensing surface are arranged opposite to each other in the longitudinal direction of the electronic atomization device; And / or, the airflow sensor is arranged away from the longitudinal center axis of the electronic atomization device.

8. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A proximal end and a distal end facing each other in the longitudinal direction; the air outlet is arranged at the proximal end, and the first air inlet is arranged at the distal end; The distance between the airflow sensor and the proximal end is smaller than the distance between the airflow sensor and the distal end.

9. The electronic atomization device according to claim 8, characterized in that: The heating element is arranged between the air outlet and the partition.

10. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A battery cell, used for providing electric power; along the longitudinal direction of the electronic atomization device, the battery cell and the liquid storage chamber are arranged at intervals; The airflow sensor is located between the battery core and the liquid storage chamber; or the airflow sensor is located between the first air inlet and the battery core.

11. The electronic atomization device according to claim 1 or 2, characterized in that: Also includes: A bracket for accommodating or holding the heating element; The airflow sensor and the partition are accommodated or held in the bracket and are arranged away from the liquid storage chamber.

12. The electronic atomization device according to claim 1 or 2, characterized in that: The second air inlet is a through hole on the isolation member; and / or at least a portion of an inner surface of the second air inlet is defined by the isolation member.

13. The electronic atomization device according to claim 1 or 2, characterized in that: The partition wraps a portion of the surface of the airflow sensor and avoids or exposes at least a portion of the first sensing surface and the second sensing surface.

14. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; A first air inlet, an air outlet, and an air flow channel located between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet; An airflow sensor comprises a first sensing surface and a second sensing surface opposite to each other, and senses a difference between a pressure sensed by the first sensing surface and a pressure sensed by the second sensing surface; a partition wrapping a portion of the airflow sensor and exposing or avoiding the first sensing surface and the second sensing surface; the airflow channel includes at least one second air inlet passing through the partition; The first sensing surface and the second sensing surface of the airflow sensor are in airflow communication via the at least one second air inlet.

15. An electronic atomization device, characterized in that: include: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; A battery cell, used to supply power to the heating element; a first air inlet, and an air flow channel between the first air inlet and the air outlet; the air flow channel is arranged to define an air flow path from the first air inlet via the heating element to the air outlet to transfer the aerosol to the air outlet; An airflow sensor is used to sense changes in airflow flowing through the electronic atomization device; along the longitudinal direction of the electronic atomization device, the airflow sensor is arranged between the heating element and the battery core; the airflow sensor includes a first sensing surface and a second sensing surface opposite to each other along the longitudinal direction of the electronic atomization device; the first sensing surface is connected to the airflow at the air outlet, and the second sensing surface is connected to the airflow at the first air inlet.

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