Atomizer and electronic atomization device

Abstract

The present application provides an atomizer and an electronic atomization device. The atomizer comprises: a housing; a liquid storage cavity configured to store a liquid substrate; an atomization assembly configured to atomize the liquid substrate to generate an aerosol; a support configured to at least partially support the atomization assembly, the support at least partially surrounding or defining an atomization chamber, and the atomization assembly being at least partially contained in the atomization chamber; a ventilation channel formed between an outer surface of the support and the housing to provide a channel path for air in the atomization chamber to enter the liquid storage cavity; and at least one flow blocking structure arranged in the ventilation channel and configured to block the air or the liquid substrate flowing through the ventilation channel. According to the atomizer, the flow blocking structure is arranged in the ventilation channel, such that the atomizer can adapt to changes in external pressure during transportation or storage of the atomizer to trap the liquid substrate and air in the ventilation channel, and then internal pressure and the external pressure on the atomizer are balanced by adjusting the flow of the liquid substrate and the air.

Description

Atomizers and electronic atomization devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410323324.2, filed with the Patent Office of China on March 18, 2024, entitled “Atomizer and Electronic Atomization Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the field of electronic atomization technology, and in particular to an atomizer and an electronic atomization device. Background Art

[0004] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0005] 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, which may or may not contain nicotine. As another example, there are aerosol-providing products, such as so-called electronic atomization devices. These devices typically include a liquid storage chamber for storing a liquid matrix, which is heated to vaporize it, thereby producing an inhalable aerosol. Known electronic atomization devices are arranged with a ventilation channel, which allows outside air to enter the liquid storage chamber when the pressure in the liquid storage chamber decreases as the liquid matrix is ​​consumed, so as to relieve or eliminate the negative pressure in the liquid storage chamber; when used in transportation or low-pressure environments, the external pressure is less than the pressure in the liquid storage chamber, causing the liquid matrix in the liquid storage chamber to leak from the ventilation channel.

[0006] Application Contents

[0007] One embodiment of the present application provides an atomizer, comprising a housing, and:

[0008] a liquid storage chamber for storing a liquid matrix;

[0009] A nebulizer assembly, used for atomizing a liquid matrix to generate an aerosol;

[0010] The bracket is configured to at least partially support the atomizing assembly; the bracket at least partially surrounds or defines an atomizing chamber, and the atomizing assembly is at least partially accommodated in the atomizing chamber;

[0011] A ventilation channel is formed between the outer surface of the bracket and the shell to provide a passage path for the air in the atomization chamber to enter the liquid storage chamber;

[0012] At least one flow-blocking structure is arranged in the ventilation channel to provide a barrier to the air or liquid medium flowing through the ventilation channel.

[0013] In some embodiments, the ventilation channel comprises a groove arranged in a meandering manner on the outer surface of the bracket.

[0014] In some embodiments, at least one flow-blocking structure is arranged on one side of the groove along the width direction thereof, or is alternately arranged on both sides of the groove along the width direction thereof.

[0015] In some embodiments, the groove includes a first groove portion and a second groove portion spaced apart along the longitudinal direction of the bracket; the first groove portion is communicated with the atomization chamber, and the second groove portion is communicated with the liquid storage chamber.

[0016] In some embodiments, the first groove portion has a first sidewall and a second sidewall opposite to each other in the width direction; the at least one flow-blocking structure is arranged to extend from the first sidewall toward the second sidewall and has a free end facing the second sidewall;

[0017] The communicating hole is closer to the second side wall than a free end of the at least one flow-blocking structure.

[0018] In some embodiments, the bracket is provided with a protrusion located between the first groove portion and the second groove portion;

[0019] At least one flow-blocking structure is arranged to extend from the protrusion into the groove.

[0020] In some embodiments, the bracket includes a first side and a second side opposite to each other in the width direction;

[0021] The second groove portion has a communication port close to the first side and is in communication with the liquid storage chamber through the communication port;

[0022] The first groove portion and the second groove portion merge or communicate near the second side.

[0023] In some embodiments, a communication hole is further arranged on the bracket, and the communication hole passes through the atomization chamber to the first groove portion to connect the atomization chamber and the first groove portion.

[0024] In some embodiments, the flow-blocking structure includes: at least one first flow-blocking structure located in the first groove, and / or at least one second flow-blocking structure located in the second groove.

[0025] In some embodiments, the first groove portion and the second groove portion are configured to extend along a width direction of the bracket;

[0026] The width dimension of the first groove portion is greater than the width dimension of the second groove portion.

[0027] In some embodiments, the second groove portion is closer to the liquid reservoir than the first groove portion.

[0028] In some embodiments, at least one flow-blocking structure is disposed at a junction of the first groove portion and the second groove portion.

[0029] In some embodiments, the atomizing assembly includes:

[0030] a liquid guiding element, arranged substantially perpendicular to the longitudinal direction of the atomizer and at least partially extending from the atomizing chamber into the liquid storage chamber to absorb the liquid matrix;

[0031] The heating element is located in the atomizing chamber and is arranged around a portion of the liquid guiding element, and is used for heating at least a portion of the liquid matrix in the liquid guiding element to generate aerosol.

[0032] In some embodiments, the atomizer further comprises a front side and a rear side facing away from each other;

[0033] The bracket is provided with a support groove arranged toward the liquid storage cavity, and the liquid guiding element is at least partially accommodated or retained in the support groove; the support groove has an opening toward the front side, and the ventilation channel is connected with the liquid storage cavity through the connecting opening.

[0034] Yet another embodiment of the present application provides an electronic atomization device, comprising the above atomizer and a power supply mechanism for supplying power to the atomizer.

[0035] The above-mentioned atomizer, by arranging a flow-blocking structure in the ventilation channel, can adapt to changes in external pressure during transportation or storage of the atomizer and lock the liquid matrix and air in the ventilation channel, thereby balancing the internal and external pressures of the atomizer by adjusting the flow of the liquid matrix and air. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0037] FIG1 is a schematic diagram of an electronic atomization device provided by an embodiment;

[0038] FIG2 is a schematic diagram of an embodiment of the atomizer in FIG1 ;

[0039] FIG3 is an exploded schematic diagram of the atomizer in FIG2 from one perspective;

[0040] FIG4 is an exploded schematic diagram of the atomizer in FIG2 from another perspective;

[0041] FIG5 is a cross-sectional schematic diagram of the atomizer in FIG2 from one perspective;

[0042] FIG6 is a schematic diagram of the atomizing assembly in FIG5 being assembled in the bracket;

[0043] FIG7 is a schematic diagram of the atomizing assembly, sealing sleeve, and bracket in FIG5 after assembly;

[0044] FIG8 is a cross-sectional schematic diagram of the atomizing assembly in FIG6 assembled in the bracket;

[0045] FIG9 is a schematic diagram of the electronic atomization device of FIG2 showing the liquid matrix seeping from the liquid storage chamber to the ventilation channel when the external pressure is less than the pressure in the liquid storage chamber;

[0046] FIG10 is a schematic diagram of the electronic atomization device of FIG2 showing the liquid matrix flowing back from the ventilation channel to the liquid storage chamber when the external pressure is greater than the pressure in the liquid storage chamber;

[0047] FIG11 is a schematic diagram of an assembled atomization assembly, a sealing sleeve, and a bracket of an electronic atomization device according to another embodiment;

[0048] FIG12 is a schematic diagram of the electronic atomization device of FIG11 , showing the liquid matrix seeping from the liquid storage chamber to the ventilation channel when the external pressure is less than the pressure in the liquid storage chamber. DETAILED DESCRIPTION

[0049] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific implementation methods.

[0050] One embodiment of the present application proposes an electronic atomization device, as shown in FIG1 , comprising an atomizer 100 that stores a liquid matrix and atomizes it to generate an aerosol, and a power supply mechanism 200 that supplies power to the atomizer 100. In the embodiment shown in FIG1 , the atomizer 100 and the power supply mechanism 200 of the electronic atomization device are separable or detachable relative to each other; an electronic atomization device having such a atomizer 100 and a power supply mechanism 200 that are separable or detachable relative to each other, such as a so-called "replaceable cartridge" electronic atomization device. Or in some other variations, the atomizer 100 and the power supply mechanism 200 of the electronic atomization device are tightly wrapped and fixed by a shell component of the electronic atomization device, so that the atomizer 100 and the power supply mechanism 200 cannot be detachable relative to each other from the inside of the shell component; an electronic atomization device having such a atomizer 100 and a power supply mechanism 200 that are not detachable relative to each other, such as a so-called "integrated or disposable" electronic atomization device.

[0051] In an optional embodiment, such as shown in Figure 1, the power supply mechanism 200 includes a receiving cavity 2170 arranged at one end along the length direction for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 2130 at least partially exposed in the receiving cavity 2170, which is used to form an electrical connection with the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated in the power supply mechanism 200, thereby supplying power to the atomizer 100.

[0052] According to the embodiment shown in FIG1 , an electrical contact 21 is provided on the end portion of the atomizer 100 opposite to the power supply mechanism 200 along the length direction. When at least a portion of the atomizer 100 is received in the receiving cavity 2170 , the electrical contact 21 contacts and abuts against the electrical contact 2130 to thereby form electrical conduction.

[0053] A sealing member 2160 is provided within the power supply mechanism 200, and the sealing member 2160 partitions at least a portion of the internal space of the power supply mechanism 200 to form the receiving chamber 2170. In the embodiment shown in FIG1 , the sealing member 2160 is configured to extend in a longitudinal direction perpendicular to the power supply mechanism 200 and is preferably made of a flexible material such as silicone, thereby preventing the liquid matrix that seeps from the atomizer 100 into the receiving chamber 2170 from flowing toward components such as the controller 2120 and the sensor 2150 located within the power supply mechanism 200.

[0054] In the embodiment shown in Figure 1, the power supply mechanism 200 also includes a battery cell 2110 for power supply at the other end away from the receiving cavity 2170 along the length direction; and a controller 2120 arranged between the battery cell 2110 and the receiving cavity 2170, which is operable to guide current between the battery cell 2110 and the electrical contact 2130.

[0055] The power supply mechanism 200 includes a sensor 2150 for sensing the suction airflow generated by the atomizer 100 during suction. The controller 2120 then controls the battery cell 2110 to supply power to the atomizer 100 according to a detection signal from the sensor 2150 .

[0056] In the embodiment shown in FIG. 1 , the power supply mechanism 200 is provided with a charging interface 2140 at the other end away from the receiving cavity 2170 , and the charging interface 2140 is used to charge the battery cell 2110 .

[0057] Figures 2 to 5 show a schematic structural diagram of an embodiment of the atomizer 100 in Figure 1, wherein the atomizer 100 includes a housing 10, which is generally hollow cylindrical and contains the necessary functional components for storing and atomizing the liquid matrix. In the embodiment, the housing 10 has:

[0058] a proximal end 110 and a distal end 120 facing each other in the longitudinal direction;

[0059] A first side 130 and a second side 140 opposite to each other in the width direction;

[0060] A front side 150 and a rear side 160 facing each other in the thickness direction;

[0061] Among them, according to the requirements of normal use, the proximal end 110 is configured as the end for the user to inhale the aerosol, and an air outlet 113 for the user to inhale is provided at the proximal end 110; and the distal end 120 is used as the end combined with the power supply mechanism 200, and the distal end 120 of the shell 10 is open, and the opening is closed by the bracket 50. The open structure is used to install various functional components into the interior of the shell 10.

[0062] In the embodiment shown in Figures 2 to 5 , the electrical contact 21 extends from the surface of the bracket 50 into the interior of the atomizer 100. Thus, at least a portion of the electrical contact 21 is exposed outside the atomizer 100, thereby forming electrical contact with the electrical contact 2130. Furthermore, as shown in Figures 2 to 5 , after assembly, the exposed portion of the electrical contact 21 is flush with the surface of the bracket 50. Furthermore, the bracket 50 is provided with an air inlet 52 for allowing external air to enter the atomizer 100 during inhalation.

[0063] According to the embodiment shown in Figures 2 to 5, the housing 10 includes a first housing portion 11 and a second housing portion 12. The first housing portion 11 is adjacent to or defines a proximal end 110, and the second housing portion 12 is adjacent to or defines a distal end 120. The width of the first housing portion 11 is greater than the width of the second housing portion 12; and / or the thickness of the first housing portion 11 is greater than the thickness of the second housing portion 12. Furthermore, a step is formed between the first housing portion 11 and the second housing portion 12. In use, the second housing portion 12 of the housing 10 can be received within the receiving cavity 2170 of the power supply mechanism 200, establishing an electrically conductive connection therewith. Furthermore, the first housing portion 11 is exposed outside the receiving cavity 2170, and the step defined between the first housing portion 11 and the second housing portion 12 abuts against the end of the power supply mechanism 200, thereby providing a stop for the atomizer 100 received in the receiving cavity 2170.

[0064] As shown in Figures 2 to 5 , the housing 10 is internally provided with a liquid storage chamber 112 for storing a liquid matrix, and an atomization assembly for drawing the liquid matrix from the liquid storage chamber 112 and heating and atomizing the liquid matrix. In the cross-sectional schematic diagram shown in Figure 5 , an axially arranged aerosol delivery tube 111 is provided within the housing 10. The space between the outer surface of the aerosol delivery tube 111 and the inner surface of the housing 10 forms the liquid storage chamber 112 for storing the liquid matrix. The first end of the aerosol delivery tube 111, opposite the proximal end 110, is connected to an air outlet 113, thereby transmitting the generated aerosol to the air outlet 113 for inhalation by the user. As shown in Figure 5 , the aerosol delivery tube 111 and the housing 10 are integrally molded from a moldable material. The resulting liquid storage chamber 112 is closed on the proximal end 110 side and open on the side facing the distal end 120.

[0065] As shown in Figures 2 to 5, the interior of the housing 10 is provided with:

[0066] The atomizing assembly 30 is used to absorb a liquid matrix from the liquid storage chamber 112 and heat and vaporize the absorbed liquid matrix to generate an aerosol for inhalation. Specifically, the atomizing assembly 30 includes a liquid guiding element 31 and a heating element 32 at least partially surrounding the liquid guiding element 31.

[0067] As shown in Figures 3 to 5 , the liquid-conducting element 31 is configured to extend along the width of the housing 10, with both ends exposed within or in fluid communication with the liquid storage chamber 112. During use, liquid in the liquid storage chamber 112 is absorbed by the exposed ends of the liquid-conducting element 31 and then transferred to the central portion, as indicated by arrow R1 in Figure 5 . The heating element 32 surrounds or wraps around at least a portion of the liquid-conducting element 31, heating at least a portion of the liquid in the liquid-conducting element 31 to generate an aerosol for inhalation.

[0068] In some embodiments, the liquid-conducting element 31 is made of a flexible fiber material, for example, cotton fiber, non-woven fabric, or sponge; the liquid-conducting element 31 is configured in a rod shape arranged perpendicular to the longitudinal direction of the housing 10. Alternatively, in some alternative embodiments, the liquid-conducting element 31 includes a rigid porous element, such as porous ceramic or porous glass.

[0069] In an embodiment, the heating element 32 is arranged in the form of a spiral coil surrounding a portion of the liquid-conducting element 31. In some alternative embodiments, the heating element 32 is a mesh, tube, or the like surrounding a portion of the liquid-conducting element 31. Alternatively, in still other embodiments, the heating element 32 is a heating element wound around a sheet or mesh substrate; the wound heating element 32 is not closed in the circumferential direction, but rather has a cylindrical shape with side openings extending in the longitudinal direction. In some embodiments, the heating element 32 is made of a resistive metal or alloy, such as iron, nickel, chromium, or alloys thereof, and generates heat through resistive Joule heating.

[0070] In an embodiment, conductive pins 321 are welded or arranged at both ends of the heating element 32 to conduct current on the heating element 32. After assembly, the conductive pins 321 extend to the electrical contacts 21 and contact or weld to form a conductive connection, thereby electrically connecting the heating element 32 to the electrical contacts 21.

[0071] As shown in Figures 2 to 5, the bracket 50 is at least partially coupled to the opening of the distal end 120 of the housing 10 to close the distal end 120 of the housing 10. The bracket 50 is provided with a contact hole 51 into which the power contact 21 extends. At least a portion of the conductive pin 321 passes through at least a portion of the bracket 50 and then bends into the contact hole 51 to contact or connect with the power contact 21.

[0072] As shown in FIG. 2 to FIG. 5 , an air inlet 52 is further arranged on the bracket 50 for allowing external air to enter the atomizer 100 during suction.

[0073] As shown in FIG. 2 to FIG. 5 , the atomizer 100 further includes:

[0074] A flexible cover 20 is attached to the surface of the bracket 50 at the distal end 120; the cover 20 is used to cover the surface of the bracket 50 at the distal end 120. Specifically, the bracket 50 has a mounting groove 53 on the surface of the distal end 120, and the cover 20 is received or assembled within the mounting groove 53. The cover 20 is generally sheet-shaped and further includes a relief hole 22. When the cover 20 is attached to the surface of the bracket 50 at the distal end 120, the relief hole 22 aligns with the contact hole 51 / air inlet 52, thereby exposing the contact hole 51 / air inlet 52.

[0075] A flexible sealing element 59, such as an O-ring, is disposed about the stent 50; when assembled, the sealing element 59 is positioned between the stent 50 and the housing 10 near the distal end 120, thereby providing a seal therebetween.

[0076] 2 to 8 , the atomizer assembly 30 is held and supported within the housing 10 by a flexible sealing sleeve 40 and a rigid bracket 50 . After assembly, the atomizer assembly 30 is clamped between the sealing sleeve 40 and the bracket 50 .

[0077] As shown in Figures 2 to 8 , the bracket 50 is provided with two extension walls 55 extending from the main body toward the proximal end 110. The two extension walls 55 are spaced apart along the thickness of the nebulizer 100. One of the two extension walls 55 is located near the front side 150, and the other is located near the rear side 160. The atomizer assembly 30 is at least partially accommodated and retained between the two extension walls 55. After assembly, the hollow sealing sleeve 40 surrounds and encloses the extension walls 55 from the outside.

[0078] After assembly, the sealing sleeve 40 and the bracket 50 together define an atomization chamber 60, which is isolated from the liquid storage chamber 112. The atomization chamber 60 is at least partially defined between the two extension walls 55. The liquid-guiding element 31 is at least partially housed within the atomization chamber 60, with portions of both ends extending from the atomization chamber 60 into the liquid storage chamber 112, thereby drawing liquid matrix from the liquid storage chamber 112. The heating element 32 is located within the atomization chamber 60 and surrounds a portion of the liquid-guiding element 31. A portion of the liquid matrix within the liquid-guiding element 31 is heated by the heating element 32, generating an aerosol that is released into the atomization chamber 60.

[0079] As shown in Figures 2 to 8 , the atomization chamber 60 is connected to the air inlet 52 on the bracket 50, and external air enters the atomization chamber 60 through the air inlet 52. The sealing sleeve 40 is provided with an insertion port 42; during assembly, the aerosol output tube 111 is at least partially inserted into or passes through the insertion port 42, thereby communicating with the atomization chamber 60, thereby outputting the aerosol in the atomization chamber 60 to the air outlet 113. During inhalation, the airflow path of the atomizer 100 is as shown by arrow R2 in Figure 5, with external air entering the atomization chamber 60 from the air inlet 52 and carrying the aerosol through the aerosol output tube 111 to the air outlet 113.

[0080] As shown in Figures 2 to 8 , the inner wall of the hollow sealing sleeve 40 is provided with a retaining protrusion 41. When the aerosol delivery tube 111 is inserted into the insertion port 42, the aerosol delivery tube 111 abuts against the retaining protrusion 41 to provide positioning or retention. Accordingly, notches 551 are provided on the two extending walls 55. During assembly of the sealing sleeve 40 and the bracket 50, the retaining protrusion 41 of the sealing sleeve 40 aligns with the notches 551, providing clearance during assembly.

[0081] As shown in Figures 2 to 8 , the surface of the bracket 50 facing the liquid storage chamber 112 is provided with support grooves 56 ; these support grooves 56 are arranged along the width of the bracket 50, and portions of the ends of the liquid-conducting element 31 are accommodated and retained within the support grooves 56 . As shown in Figure 6 , the support grooves 56 are generally U-shaped. After assembly, when portions of the liquid-conducting element 31 are accommodated and retained within the support grooves 56 , the sealing sleeve 40 and bracket 50 sandwich the portions of the liquid-conducting element 31 therebetween, thereby retaining the liquid-conducting element 31.

[0082] As shown in Figures 2 to 8, the bracket 50 has a first side surface facing the front side 150 and a second side surface facing the rear side 160. The second side surface of the bracket 50 is smooth and, after assembly, abuts against and engages with the inner surface of the housing 10 at the rear side 160. A ventilation channel is arranged on the first side surface of the bracket 50 to provide a channel for external air to enter the liquid storage chamber 112, thereby alleviating or eliminating the negative pressure in the liquid storage chamber 112. The ventilation channel on the first side surface is located between the extension wall 55 and the sealing element 59.

[0083] As shown in Figures 2 to 8, the ventilation channel includes a groove arranged on the first side surface, and the groove includes:

[0084] A first groove portion 541 and a second groove portion 542 extend along the circumference of the bracket 50. The first and second groove portions 541, 542 are spaced apart in the longitudinal direction of the bracket 50, with a protrusion 543 separating them. The first groove portion 541 is closer to the distal end 120 than the second groove portion 542; alternatively, the second groove portion 542 is closer to the liquid storage chamber 112 than the first groove portion 541. The protrusion 543 extends along the circumference of the bracket 50. The first and second groove portions 541, 542 merge or communicate near the second side 140, with a juncture 549 near the second side 140 where the first and second groove portions 541, 542, communicate. The width of the first groove portion 541 is greater than the width of the second groove portion 542.

[0085] The bracket 50 is also provided with a communication hole 546 extending from the atomizing chamber 60 within the bracket 50 to the first recessed portion 541. The communication hole 546 connects the first recessed portion 541 to the atomizing chamber 60 and / or the air inlet 52, and further connects the first recessed portion 541 to the outside atmosphere. The communication hole 546 is adjacent to or adjacent to the sealing element 59.

[0086] The support groove 56 is open toward the front side 150 near the first side 130. The second groove portion 542 has a communication port 57 near the first side 130 that communicates with the open end of the support groove 56, thereby connecting the second groove portion 542 to the liquid storage chamber 112. The width of the communication port 57 is smaller than the width of the second groove portion 542.

[0087] During use, as indicated by arrow R3 in FIG7 , when the negative pressure within the liquid storage chamber 112 exceeds a predetermined threshold, air within the atomization chamber 60 enters the first groove portion 541 through the communication hole 546, flows through the first groove portion 541 and the second groove portion 542, and then enters the liquid storage chamber 112 through the communication port 57, thereby alleviating or eliminating the negative pressure within the liquid storage chamber 112. Furthermore, the ventilation passage defined by the first groove portion 541 and the second groove portion 542 has a circuitous path between the communication hole 546 and the communication port 57.

[0088] As shown in Figures 2 to 8 , a shielding structure 547 is also arranged on the inner wall of the support 50 that defines the atomization chamber 60 to prevent the aerosol or aerosol condensate within the atomization chamber 60 from flowing toward the communication hole 546. In an embodiment, the shielding structure 547 is configured as a ridge or tab extending longitudinally along the support 50. The communication hole 546 is arranged near or adjacent to the shielding structure 547; thus, the communication hole 546 is blocked by the shielding structure 547, or the communication hole 546 is located between the shielding structure 547 and the inner surface of the atomization chamber 60.

[0089] As shown in Figures 2 to 8, the first side surface of the bracket 50 is further provided with:

[0090] At least one or more first flow-blocking structures 544 are located in the first groove portion 541 ; the first flow-blocking structures 544 are arranged to extend along the longitudinal direction of the bracket 50 ;

[0091] At least one or more second flow-blocking structures 545 are located in the second groove portion 542 .

[0092] At least one or more first flow-blocking structures 544 are located between the communication hole 546 and the second side in the first groove portion 541 ; at least one or more second flow-blocking structures 545 are located between the communication port 57 and the second side in the second groove portion 542 .

[0093] In some embodiments, the distance between the at least one first flow-blocking structure 544 and the communication hole 546 is less than 8 mm, which is beneficial for providing flow resistance near the communication hole 546. In some embodiments, the distance between the at least one second flow-blocking structure 545 and the communication port 57 is less than 8 mm, which is beneficial for providing flow resistance near the communication port 57.

[0094] In some embodiments, the plurality of first flow-blocking structures 544 are located on one side of the width of the first groove portion 541; or in other embodiments, the plurality of first flow-blocking structures 544 are alternately arranged on both sides of the width of the first groove portion 541. Similarly, at least one or more second flow-blocking structures 545 are each located on one side of the width of the second groove portion 542; or, the plurality of second flow-blocking structures 545 are alternately arranged on both sides of the width of the second groove portion 542.

[0095] In some embodiments, the extension length of the first obstruction structures 544 and / or the second obstruction structures 545 is approximately 0.5 mm to 1.5 mm; and the width of the first obstruction structures 544 and / or the second obstruction structures 545 is approximately 0.2 mm to 1.0 mm.

[0096] As shown in FIG. 6 to FIG. 9 , the communication hole 546 is closer to the distal end 120 than the first flow blocking structure 544 ; alternatively, the communication hole 546 is closer to the sealing element 59 than the first flow blocking structure 544 .

[0097] In an embodiment, at least one or more first flow blocking structures 544 extend from the protrusion 543 into the first groove portion 541 , and at least one or more second flow blocking structures 545 extend from the protrusion 543 into the second groove portion 542 .

[0098] In an embodiment, the second flow-blocking structure 545 is located near the communication port 57 and spaced apart from the communication port 57. Furthermore, the first flow-blocking structure 544 is located near the communication hole 546 and spaced apart from the communication hole 546. The first flow-blocking structure 544 and the second flow-blocking structure 545 are used to lock the liquid matrix and / or air in the ventilation channel and regulate or balance the flow of the liquid matrix and / or air. The first flow-blocking structure 544 and the second flow-blocking structure 545 are also used to reduce the flow rate of the liquid matrix in the ventilation channel to prevent bubbles from forming in the liquid matrix during flow by the surface tension of the liquid matrix and forming a flow barrier.

[0099] As shown in FIG7 , the first groove portion 541 has a first sidewall 5411 and a second sidewall 5412 that face each other in the width direction; the first sidewall 5411 is closer to the proximal end 110, and the second sidewall 5412 is closer to the distal end 120. At least one first flow-blocking structure 544 is arranged to extend from the first sidewall 5411 toward the second sidewall 5412; the first flow-blocking structure 544 is spaced apart from the second sidewall 5412, and the first flow-blocking structure 544 has a free end that does not contact the second sidewall 5412. As shown in FIG7 , the communication hole 546 is closer to the second sidewall 5412 than the free end of the first flow-blocking structure 544. 7 to 10 , when the atomizer 100 is in use, the communicating hole 546 has a higher height than the free end of the first flow-blocking structure 544 , which is beneficial for preventing the liquid matrix in the first groove portion 541 from entering the atomization chamber through the communicating hole 546 , regardless of whether the atomizer 100 is placed upright or inverted.

[0100] During assembly, the liquid reservoir 112 of the housing 10 is first filled with liquid matrix and then inverted. The sealing sleeve 40, atomizer assembly 30, and bracket 50 are then assembled into the module shown in FIG7 . The module is then inserted from the distal end 120 of the inverted housing 10 into the housing 10 to complete the assembly. During the assembly process, a very small amount of liquid matrix in the liquid reservoir 112 may seep into the second groove portion 242 and / or the first groove portion 541 of the ventilation channel due to squeezing during assembly or air pressure.

[0101] Or in some other variations, the grooves defining the ventilation passages may be formed or arranged on the inner surface of the front side 150 of the housing 10 .

[0102] Further, as shown in Figures 9 and 10, when the atomizer 100 is transported or stored in an inverted position, when the external pressure is less than the pressure within the liquid storage chamber 112, more liquid matrix within the liquid storage chamber 112 will seep out through the communication port 57 into the second groove portion 542, as indicated by arrow R4 in Figure 9. Due to the surface tension of the liquid matrix, it will advance within the narrow width of the second groove portion 542 and / or the first groove portion 541 without being entrained with bubbles. When the external pressure is greater than the pressure within the liquid storage chamber 112, some of the liquid matrix within the first groove portion 541 and / or the second groove portion 542 will flow back into the liquid storage chamber 112, bringing the internal and external pressures to equilibrium, as indicated by arrow R5 in Figure 10. During this backflow, the narrow width and the tension of the liquid matrix will, to a certain extent, hinder the entry of air into the liquid storage chamber 112. Therefore, during transportation or storage, the atomizer 100 can adapt to changes in external pressure to lock or maintain the liquid matrix and air in a narrow and circuitous ventilation channel to form a balance, thereby preventing air from entering the liquid storage chamber 112 and forming bubbles during transportation or storage.

[0103] In some embodiments, the length of the first groove portion 541 and / or the second groove portion 542 is greater than the width, and the width is greater than the depth. In some specific embodiments, the width of the first groove portion 541 is between 0.8 mm and 1.5 mm; and the width of the second groove portion 542 is between 0.5 mm and 1.2 mm. In some specific embodiments, the depth of the first groove portion 541 and / or the second groove portion 542 is between 0.2 mm and 0.5 mm.

[0104] Alternatively, Figures 11 and 12 show schematic diagrams of the assembly of the sealing sleeve 40a, the atomizing assembly, and the bracket 50a of another variant embodiment of the atomizer 100a; in this embodiment, a ventilation channel is arranged on the first side surface of the bracket 50a facing the front side of the atomizer 100a to provide a channel path for external air to enter the liquid storage chamber. The ventilation channel is formed between the first side surface of the bracket 50a and the housing 10a. In this embodiment, the ventilation channel includes:

[0105] A first groove portion 541a and a second groove portion 542a extend circumferentially of the bracket 50a. The first groove portion 541a and the second groove portion 542a are spaced apart longitudinally of the bracket 50a and separated and defined by a protrusion 543a. The first groove portion 541a and the second groove portion 542a merge and communicate near the second side of the atomizer 100a, and a merging point 549a is formed near the second side where the first groove portion 541a and the second groove portion 542a communicate.

[0106] In this embodiment, the first groove portion 541a is connected to the atomizing chamber within the bracket 50a through the connecting hole 546a. The connecting hole 546a is arranged near the protrusion 543a within the first groove portion 541a. The second groove portion 542a has a connecting port 57a arranged near the first side of the atomizer 100a; the connecting port 57a connects to the front opening of the support groove 56, thereby connecting the second groove portion 542a to the liquid storage chamber. In use, when the negative pressure within the liquid storage chamber exceeds a predetermined threshold, the external air entering through the connecting hole 546a flows through the first groove portion 541a and the second groove portion 542a in sequence and then enters the liquid storage chamber, as shown by arrow R3 in Figure 11.

[0107] As shown in Figures 11 and 12 , the first side surface of the bracket 50a is further provided with a plurality of flow-blocking structures to regulate the flow of the liquid matrix within the ventilation channel and maintain pressure balance between the liquid storage chamber and the outside during transportation or storage. Specifically, the flow-blocking structures include:

[0108] The first flow-blocking structure located in the first groove portion 541a includes a flow-blocking structure 544a and a flow-blocking structure 548a respectively located in the first groove portion 541a; the flow-blocking structure 544a extends from the protrusion 543a at the end near the second side toward the first groove portion 541a along the longitudinal direction of the bracket 50a; the flow-blocking structure 548a extends from the edge of the first groove portion 541a near the distal end 120a to the first groove portion 541a; the flow-blocking structure 544a is arranged at the confluence 549a of the first groove portion 541a and the second groove portion 542a; at least one or more second flow-blocking structures 545 located in the second groove portion 542a extend from the protrusion 543a to the second groove portion 542a along the longitudinal direction of the bracket 50a.

[0109] The ventilation channel of this embodiment is suitable for transporting and storing the atomizer 100a in a sequential manner. As shown in Figure 12, after assembly, a small amount of liquid matrix in the liquid storage chamber seeps from the connecting port 57a into the second groove portion 542a and the first groove portion 541a, where it is locked or retained in the second groove portion 542a and the first groove portion 541a. During transportation and storage, when the external pressure is less than the pressure in the liquid storage chamber, more liquid matrix in the liquid storage chamber flows out through the connecting port 57a. During the outflow process, it is blocked by the flow-blocking structure, gradually increasing the liquid level in the first groove portion 541a without generating bubbles, as shown by arrow R3 in Figure 12. When the external pressure is greater than the pressure in the liquid storage chamber, the liquid matrix in the first groove portion 541a and the second groove portion 542a, driven by the pressure, flows back through the connecting port 57a, thereby maintaining the balance of internal and external pressures.

[0110] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled 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 this application.

Claims

1. An atomizer, characterized in that: Includes housing, plus: a liquid storage chamber for storing a liquid matrix; A nebulizer assembly, used for atomizing a liquid matrix to generate an aerosol; a bracket configured to at least partially support the atomizing assembly; the bracket at least partially surrounds or defines an atomizing chamber, and the atomizing assembly is at least partially accommodated in the atomizing chamber; a ventilation channel formed between the outer surface of the bracket and the housing to provide a passage path for the air in the atomization chamber to enter the liquid storage chamber; At least one flow-blocking structure is arranged in the ventilation channel to provide a barrier to the air or liquid medium flowing through the ventilation channel.

2. The atomizer according to claim 1, wherein The ventilation channel includes a groove arranged in a bent manner on the outer surface of the bracket.

3. The atomizer according to claim 2, wherein At least one of the flow-blocking structures is arranged on one side of the groove along the width direction thereof, or is alternately arranged on both sides of the groove along the width direction thereof.

4. The atomizer according to claim 2 or 3, characterized in that The groove includes a first groove portion and a second groove portion spaced apart along a longitudinal direction of the bracket; the first groove portion is communicated with the atomization chamber, and the second groove portion is communicated with the liquid storage chamber.

5. The atomizer according to claim 4, characterized in that The bracket is further provided with a communication hole, which passes through the atomization chamber to the first groove portion to connect the atomization chamber and the first groove portion.

6. The atomizer according to claim 5, characterized in that The first groove portion has a first side wall and a second side wall opposite to each other in the width direction; at least one of the flow-blocking structures is arranged to extend from the first side wall toward the second side wall and has a free end facing the second side wall; The communicating hole is closer to the second side wall than a free end of at least one of the flow-blocking structures.

7. The atomizer according to claim 4, wherein: The bracket is provided with a protrusion located between the first groove portion and the second groove portion; At least one of the flow-blocking structures is arranged to extend from the protrusion into the groove.

8. The atomizer according to claim 4, wherein The bracket includes a first side and a second side opposite to each other in the width direction; The second groove portion has a communication port close to the first side and is in communication with the liquid storage chamber through the communication port; The first groove portion and the second groove portion merge or communicate near the second side.

9. The atomizer according to claim 4, wherein: The flow-blocking structure includes: at least one first flow-blocking structure located in the first groove, and / or at least one second flow-blocking structure located in the second groove.

10. The atomizer according to claim 4, wherein The first groove portion and the second groove portion are configured to extend along a width direction of the bracket; The width dimension of the first groove portion is greater than the width dimension of the second groove portion.

11. The atomizer according to claim 4, wherein The second groove portion is closer to the liquid storage chamber than the first groove portion.

12. The atomizer according to claim 8, wherein At least one of the flow-blocking structures is arranged at a junction of the first groove portion and the second groove portion.

13. The atomizer according to claim 1 or 2, characterized in that The atomizing assembly comprises: a liquid guiding element, arranged substantially perpendicular to the longitudinal direction of the atomizer and at least partially extending from the atomizing chamber into the liquid storage chamber to absorb the liquid matrix; The heating element is located in the atomizing chamber and is arranged around a portion of the liquid guiding element, and is used for heating at least a portion of the liquid matrix in the liquid guiding element to generate aerosol.

14. The atomizer according to claim 13, wherein The atomizer further includes a front side and a rear side facing away from each other; The bracket is provided with a support groove arranged toward the liquid storage cavity, and the liquid guiding element is at least partially accommodated or retained in the support groove; the support groove has an opening toward the front side, and the ventilation channel is connected to the liquid storage cavity by connecting to the opening.

15. An electronic atomization device, characterized in that: The invention comprises the atomizer according to any one of claims 1 to 14, and a power supply mechanism for supplying power to the atomizer.

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