Atomizer and electronic atomization device

Abstract

The utility model provides an atomizer and an electronic atomization device, and the atomizer comprises a housing which is internally provided with a liquid storage cavity for storing a liquid matrix; the atomizing core is used for atomizing the liquid matrix to generate aerosol; the bracket is arranged in the shell and is used for keeping the atomizing core; the first liquid guide element is configured to suck the liquid matrix in the liquid storage cavity so as to transfer the sucked liquid matrix to the atomizing core; at least part of the first liquid guide element is contained in the support, the first liquid guide element is provided with a first surface and a second surface which are oppositely arranged, the first surface faces the liquid storage cavity, and a buffering cavity used for buffering a liquid matrix is defined between the second surface and the support. According to the atomizer and the electronic atomization device, the liquid matrix overflowing from the liquid guide element and / or the liquid storage cavity is cached through the caching cavity, the risk of liquid leakage of the liquid matrix is reduced, the stability of liquid guide is ensured, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, and in particular to an atomizer and an electronic atomization device. BACKGROUND

[0002] An electronic atomization device is an electronic product that generates an aerosol for a user to smoke by heating a liquid substrate, such as a liquid substrate containing nicotine. The electronic atomization device generally has two parts, an atomizer and a power assembly. The atomizer stores the liquid substrate and is provided with an atomization core for heating the liquid substrate. The power assembly can supply power to the atomization core to generate heat and heat the liquid substrate.

[0003] A problem with existing atomizers is that when the air pressure in the liquid storage cavity changes, liquid leakage is likely to occur and the stability of liquid guidance is poor. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an atomizer and an electronic atomization device, aiming to solve the problem of liquid leakage and poor stability of liquid guidance in existing electronic atomization devices.

[0005] In one aspect, the present application provides an atomizer, comprising:

[0006] a housing, the housing being provided with a liquid storage cavity for storing a liquid substrate;

[0007] an atomization core for atomizing the liquid substrate to generate an aerosol;

[0008] a support provided in the housing for holding the atomization core;

[0009] a first liquid guiding element configured to draw the liquid substrate in the liquid storage cavity to deliver the drawn liquid substrate to the atomization core;

[0010] wherein the first liquid guiding element is at least partially accommodated in the support, and the first liquid guiding element has oppositely arranged first and second surfaces, the first surface facing the liquid storage cavity, and the second surface defining a buffer cavity with the support for buffering the liquid substrate.

[0011] In one example, the support is provided with a first support portion, the buffer cavity is formed between the first support portion and an inner side surface of the support, and the first support portion is in abutment with the second surface.

[0012] In one example, the support is provided with an air exchange channel, the air exchange channel communicating the liquid storage cavity and the ambient atmospheric pressure to realize air exchange between the liquid storage cavity and the ambient atmospheric pressure.

[0013] The buffer cavity is communicated with the liquid storage cavity through the ventilation channel, and the buffer cavity can buffer the liquid matrix backflowing from the ventilation channel.

[0014] In an example, the ventilation channel comprises a ventilation groove arranged on the outer surface of the bracket, and the buffer cavity is communicated with the ventilation groove to buffer the liquid matrix backflowing from the ventilation groove.

[0015] In an example, the outer surface of the bracket is spaced by a partition plate to form a plurality of ventilation grooves arranged along the circumferential direction of the bracket, and the partition plate is provided with a slot to communicate two adjacent ventilation grooves.

[0016] In an example, the slots arranged on two adjacent partition plates are arranged staggered along the axial direction of the bracket.

[0017] In an example, the ventilation channel comprises a ventilation groove arranged on the inner surface of the bracket, and the ventilation groove is communicated with the buffer cavity and the ventilation groove.

[0018] In an example, the ventilation groove extends at least partially along the inner surface of the bracket, and the ventilation channel is at least partially defined between the ventilation groove and the outer surface of the first liquid guide element.

[0019] In an example, the housing further comprises a sealing member at least partially sandwiched between the inner surface of the housing and the outer surface of the bracket.

[0020] The sealing member at least partially surrounds the outer surface of the bracket and is defined as part of the ventilation channel with the outer surface of the bracket.

[0021] In an example, the housing further comprises a connecting tube, at least part of the connecting tube is received in the bracket.

[0022] The atomizing core is received in the connecting tube, and the first liquid guide element is arranged on the outer surface of the connecting tube. The connecting tube further has a liquid inlet, and the liquid matrix sucked by the first liquid guide element is transmitted to the atomizing core through the liquid inlet.

[0023] In an example, the bracket further comprises a boss, and the boss further has a second support portion extending towards the atomizing core.

[0024] One end of the connecting tube is inserted into the bracket and abuts against the boss, and the atomizing core is supported on the second support portion.

[0025] In an example, a collection cavity is formed between the inner side surface of the bracket, the boss and the second support portion, and the collection cavity is capable of collecting liquid substrate leaked from the atomization core.

[0026] In an example, the atomization core comprises a second liquid guide element for drawing liquid substrate and a heating element for heating and atomizing the liquid substrate to generate aerosol, and the second liquid guide element indirectly receives the liquid substrate in the liquid storage cavity through the first liquid guide element.

[0027] Another aspect of the present application provides an atomizer, comprising:

[0028] a housing, wherein a liquid storage cavity for storing liquid substrate is arranged in the housing;

[0029] an atomization core for atomizing the liquid substrate to generate aerosol;

[0030] a bracket arranged in the housing for holding the atomization core;

[0031] a sealing element at least partially sandwiched between the inner side surface of the housing and the outer side surface of the bracket, wherein the sealing element at least partially surrounds the outer side surface of the bracket and defines a ventilation passage with the outer side surface of the bracket for fluid communication with the liquid storage cavity;

[0032] wherein the bracket comprises a first convex wall and a second convex wall longitudinally spaced apart, and a first partition and a second partition connected between the first convex wall and the second convex wall, and the ventilation passage comprises a plurality of ventilation grooves defined between the first convex wall and the second convex wall, at least one of the ventilation grooves is located between the first partition and the second partition, a first slot is formed on the first partition close to the first convex wall, and a second slot is formed on the second partition close to the second convex wall.

[0033] Another aspect of the present application also provides an electronic atomization device, comprising the atomizer and a power assembly detachably connected with the atomizer.

[0034] The above atomizer and electronic atomization device can store the liquid substrate overflowing from the liquid guide element and / or the liquid storage cavity in the buffer cavity, reduce the risk of liquid substrate leakage, ensure the stability of liquid guide, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0035] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document. These example are not intended to limit the application, but rather to clarify and explain the application to those skilled in the art. In the accompanying drawings, where like reference numbers refer to components that are similar in structure and / or function, unless otherwise specified, the drawings are not to scale, and the illustrations are for purposes of clarity, not limitation of the application.

[0036] Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of an atomizer provided by an embodiment of the present application;

[0038] Figure 3 is a schematic diagram of a cross-section of an atomizer provided by an embodiment of the present application;

[0039] Figure 4 is another schematic diagram of a cross-section of an atomizer provided by an embodiment of the present application;

[0040] Figure 5 is a schematic diagram of an exploded view of an atomizer provided by an embodiment of the present application;

[0041] Figure 6 is a schematic diagram of a bottom cover provided by an embodiment of the present application;

[0042] Figure 7 is a schematic diagram of a bracket provided by an embodiment of the present application;

[0043] Figure 8 is another schematic diagram of a bracket provided by an embodiment of the present application;

[0044] Figure 9 is a schematic diagram of a cross-section of a bracket provided by an embodiment of the present application;

[0045] Figure 10 is another schematic diagram of a bracket provided by an embodiment of the present application;

[0046] Figure 11 is a schematic diagram of a cross-section of a sealing member provided by an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and similar expressions used in the present specification are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] As used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of components, or parts of components, in an electronic atomization device, in the direction of flow of the drawn air stream.

[0050] Figure 1 is a schematic diagram of an electronic atomization device provided by embodiments of the present application.

[0051] As Figure 1 shown, the electronic atomization device 100 includes a power supply assembly 10 and an atomizer 20. The atomizer 20 is detachably connected to the power supply assembly 10, for example, by interference fit, snap fit, or magnetic attraction. It can be appreciated that in other examples, the atomizer 20 is non-detachably connected to the power supply assembly 10.

[0052] The atomizer 20 is configured to atomize a liquid substrate to generate an aerosol.

[0053] The power supply assembly 10 includes a battery 11 and a circuit 12.

[0054] The battery 11 provides power for operating the electronic atomization device 100. The battery 11 can be a rechargeable battery or a disposable battery.

[0055] The circuit 12 can control the overall operation of the electronic atomization device 100. The circuit 12 not only controls the operation of the battery 11 and the atomizer 20, but also controls the operation of other elements in the electronic atomization device 100.

[0056] As Figures 2 to 10 shown, the atomizer 20 includes:

[0057] A main housing 201, which is generally cylindrical. The main housing 201 has a proximal end and a distal end opposite to each other along the length direction. The proximal end is provided with an air outlet 201a for the aerosol to flow out, and the distal end is configured as one end for combination with the power supply assembly 10. The distal end of the main housing 201 is open, and a detachable bottom cover 202 is mounted thereon. After the combination with the bottom cover 202, the main housing 201 and the bottom cover 202 jointly define the housing of the atomizer 20, and the inside of the housing of the atomizer 20 is hollow and provided with necessary functional devices for storing and atomizing the liquid substrate; through the opening of the main housing 201, various necessary functional components can be installed into the inside of the housing of the atomizer 20.

[0058] Please refer toFigure 6 It is understood that the bottom cover 202 has a cavity 202a, and the bottom cover 202 is provided with an electrode assembly including a first electrode post 203 and a second electrode post 204. Specifically, the cavity 202a has two second protruding posts protruding from the bottom wall of the cavity 202a. One of the second protruding posts is provided with a through hole to form a first electrode hole 202b, and a conductive part 203a of the first electrode post 203 is at least partially received in the first electrode hole 202b, and a connecting part 203b of the first electrode post 203 is exposed on the outer surface of the bottom cover 202. The other second protruding post is provided with another through hole to form a second electrode hole 202c, and a conductive part of the second electrode post 204 is at least partially received in the second electrode hole 202c, and a connecting part of the second electrode post 204 is exposed on the outer surface of the bottom cover 202. Through the first electrode post 203 and the second electrode post 204, the atomizer 20 can be electrically connected with the power supply assembly 10. A first protruding post protruding from the bottom wall of the cavity 202a is further arranged between the two second protruding posts. The first protruding post is provided with a further through hole to form a second air inlet 202d, and the housing of the atomizer 20 has an airflow channel extending from the second air inlet 202d to the air outlet 201a. Specifically, external air can flow into the atomizer 20 through the second air inlet 202d, mix with the generated aerosol, and then flow out of the atomizer 20 through the air outlet 201a (as shown by the dashed arrow S12 in the figure). The protruding posts can also prevent the liquid substrate collected in the cavity 202a from flowing out directly, for example, to the power supply assembly 10.

[0059] The main shell 201 and the bottom cover 202 are detachably connected. In a preferred implementation, the main shell 201 is provided with a clamping hole 201b, and the bottom cover 202 is provided with a clamping buckle 202e that clamps with the clamping hole 201b.

[0060] The main shell 201 is further provided with a notch groove 201c, and the bottom cover 202 is provided with a protruding block 202f. When the main shell 201 and the bottom cover 202 are assembled, the notch groove 201c can be aligned with the protruding block 202f before assembly, and after assembly, the protruding block 202f is clamped in the notch groove 201c. Through the notch groove 201c and the protruding block 202f, the positioning function can be achieved, which facilitates assembly.

[0061] The housing of the atomizer 20 is provided with a liquid storage cavity A, a second liquid guide element 205, a heating element 206, a first lead wire 207, a second lead wire 208, a connecting pipe 209, a first liquid guide element 210, a bracket 211, and a sealing element 212.

[0062] The main housing 201 further has an axially extending transmission pipe 201d, and a space between an outer surface of the transmission pipe 201d and an inner surface of the main housing 201 forms a liquid storage chamber A for storing the liquid substrate. A hollow portion in the transmission pipe 201d forms a partial airflow passage or at least a partial aerosol passage, and one end of the transmission pipe 201d is in communication with the air outlet 201a so as to transmit the aerosol generated by the atomization of the heating element 206 to the air outlet 201a. In a preferred implementation, the transmission pipe 201d is integrally molded with the main housing 201 using a moldable material, and the liquid storage chamber A formed after the molding is open at a distal end.

[0063] The second liquid guide element 205 and the heating element 206 constitute an atomization core capable of atomizing the liquid substrate and generating the aerosol. Specifically, the second liquid guide element 205 is capable of absorbing the liquid substrate and delivering the absorbed liquid substrate to the heating element 206. The second liquid guide element 205 is generally in a tubular structure. The second liquid guide element 205 can be made of a flexible fiber material, such as cotton fiber, non-woven fabric, or sponge, etc. An outer surface of the second liquid guide element 205 has a radially outwardly extending protruding portion 205a. It can be understood that in other examples, the second liquid guide element 205 can also be in a plate-like structure or other regular or irregular shapes. Alternatively, in other examples, the second liquid guide element 205 can also be a rigid porous body, such as porous ceramic, porous glass, etc.

[0064] The heating element 206 can be heated by an electric current supply and deliver heat to the liquid substrate in contact with the heating element 206 to heat the liquid substrate and generate the aerosol. In the example shown in the figure, the heating element 206 is disposed close to an inner surface of the tubular structure of the second liquid guide element 205, can be attached to the inner surface of the second liquid guide element 205, or partially or completely embedded in the second liquid guide element 205. The heating element 206 can be a resistance heating net, a resistance heating coil, etc. The heating element 206 can be made of a material having a suitable resistance temperature coefficient characteristic, such as stainless steel 316, titanium, nickel, nickel-chromium alloy, etc. In a specific implementation, the heating element 206 can be wound from a sheet-like or net-like base material, and the wound heating element 206 is in a non-closed tubular structure in a circumferential direction, i.e., a tubular structure having a side opening extending in a length direction or an axial direction of the atomizer 20.

[0065] The heating element 206 is connected with the first lead wire 207 and the second lead wire 208, for example, by welding. The first lead wire 207 is in contact with the conductive part 203a of the first electrode column 203 to form an electrical connection, and the second lead wire 208 is in contact with the conductive part of the second electrode column 204 to form an electrical connection. Specifically, the first lead wire 207 and the second lead wire 208 can extend from the bottom of the bracket 211 and remain at the bottom of the bracket 211 after being bent, and the conductive part 203a of the first electrode column 203 and the conductive part of the second electrode column 204 abut at the bottom of the bracket 211, thereby maintaining contact with the first lead wire 207 and the second lead wire 208.

[0066] The second liquid guide element 205 and the heating element 206 are both accommodated in the connecting pipe 209, and the first liquid guide element 210 is arranged on the outer surface of the connecting pipe 209. Specifically, the tubular or ring-shaped first liquid guide element 210 is sleeved or surrounded on the outer surface of the connecting pipe 209, and preferably, the inner diameter of the first liquid guide element 210 is slightly smaller than the outer diameter of the connecting pipe 209, so that the first liquid guide element 210 is tightly sleeved on the connecting pipe 209. The connecting pipe 209 is preferably made of a relatively thin rigid material, such as glass fiber material, stainless steel, etc. Preferably, the atomizing core is coaxially arranged with the connecting pipe 209. The sidewall of the connecting pipe 209 also has a liquid guide opening 209a, and the inner surface of the first liquid guide element 210 covers the liquid guide opening 209a, and part of the second liquid guide element 205 is exposed in the liquid storage cavity A through the liquid guide opening 209a, so that this part of the second liquid guide element 205 is arranged close to the first liquid guide element 210 or in contact with the inner surface of the first liquid guide element 210, and the liquid matrix in the liquid storage cavity A can be sucked by the first liquid guide element 210 to flow into the atomizing core through the liquid guide opening 209a, i.e. be sucked by the second liquid guide element 205, and be atomized by the heating element 206 to generate the inhalable aerosol. Advantageously, the liquid matrix is sucked by the second liquid guide element 205 from the first liquid guide element 210, i.e. the second liquid guide element 205 indirectly receives the liquid matrix in the liquid storage cavity A through the first liquid guide element 210, which can avoid the liquid matrix being delivered to the heating element 206 too much or too fast.

[0067] In an example, the first liquid guide element 210 can be made of an organic porous material with elasticity, which has moderate flexibility and rigidity. In implementation, the first liquid guide element 210 has an elastic modulus or rigidity smaller than that of the material of the bracket 211 and larger than that of the material of the second liquid guide element 205. Specifically, it is hard cotton with a Shore hardness of 20-70A. In alternative implementation, the first liquid guide element 210 is hard cotton including oriented polyester fibers, or hard cotton or artificial foam made of filamentous polyurethane, etc.

[0068] The side wall of the connecting pipe 209 is further provided with a notch groove 209b extending from the lower end of the connecting pipe 209 towards the upper end of the connecting pipe 209. The protruding portion 205a of the second liquid guiding element 205 extends into the notch groove 209b and is thus exposed in the liquid storage cavity A. After assembly, the first liquid guiding element 210 is in contact with the protruding portion 205a, thereby facilitating the second liquid guiding element 205 to absorb the liquid substrate.

[0069] Please understand that the bracket 211 is preferably made of hard material, for example, in some examples, the bracket 211 can be made of plastic material. Figures 7-10 Please understand that the bracket 211 is preferably made of hard material, for example, in some examples, the bracket 211 can be made of plastic material.

[0070] The bracket 211 is detachably connected to the bottom cover 202, for example, the bracket 211 can be connected to the bottom cover 202 in a snap-fit manner. In a specific implementation, the bottom cover 202 is further provided with a clamping hole 202g, and the bracket 211 is provided with a clamping buckle 211a which is snap-fitted with the clamping hole 202g.

[0071] The bottom of the bracket 211 can be supported on the bottom cover 202. Specifically, the bottom cover 202 is further provided with a third support portion 202h which is located in the cavity 202a and protrudes from the bottom wall and the inner side surface of the cavity 202a, and the bottom of the bracket 211 can be supported on the third support portion 202h. In a preferred implementation, a plurality of third support portions 202h are arranged at intervals along the circumference of the cavity 202a, thereby better supporting the bracket 211; for example, eight third support portions 202h are arranged at intervals along the circumference of the cavity 202a, wherein two third support portions 202h are arranged next to each other and form a group of support portions, and the group of support portions is arranged relatively far apart from other groups of support portions.

[0072] The bracket 211 is substantially cylindrical in structure, and the external air flows into the cavity 202a through the second air inlet 202d, then flows into the bracket 211, mixes with the aerosol generated by the atomizing core, and then flows into the transmission pipe 201d, and finally flows out from the air outlet 201a.

[0073] At least part of the connecting pipe 209 is accommodated in the bracket 211. Specifically, the inner side surface of the bracket 211 has a first boss 211b, for example, extending radially inward from the inner side surface of the bracket 211. The upper end of the connecting pipe 209 is connected to the transmission pipe 201d, for example, the upper end of the connecting pipe 209 is sleeved on the transmission pipe 201d; the lower end of the connecting pipe 209 is inserted into the bracket 211 and abuts against the first boss 211b. Further, the first boss 211b also has a second support portion 211c extending axially towards the air outlet 201a or the atomizing core. When the lower end of the connecting pipe 209 is inserted into the bracket 211, the second liquid guide element 205 or the atomizing core can be supported by the second support portion 211c. Since the second support portion 211c extends towards the air outlet 201a or the atomizing core, a collection cavity B is formed between the first boss 211b, the second support portion 211c and the inner side surface of the bracket 211. The liquid matrix leaked from the atomizing core can be temporarily stored or collected in the collection cavity B. The liquid matrix temporarily stored in the collection cavity B can be recovered to the atomizing core or flow into the cavity 202a of the bottom cover 202 through the groove 211c1 on the end face of the second support portion 211c close to the atomizing core.

[0074] The atomizing core and the transmission pipe 201d maintain a certain gap, which is between 0.5mm and 2mm (including the end point value, the same below), or between 0.7mm and 2mm, or between 0.8mm and 2mm, or between 1mm and 2mm, or between 1mm and 1.8mm. Through the gap, the liquid matrix or condensed liquid in the atomizing core can be effectively prevented from flowing out of the air outlet 201a, improving the user's experience.

[0075] At least part of the first liquid guide element 210 is accommodated in the bracket 211. Specifically, the bracket 211 also has a first support portion 211d extending axially towards the air outlet 201a or the lower surface of the first liquid guide element 210. The first liquid guide element 210 is supported by the first support portion 211d, specifically, the upper surface (the first surface of the first liquid guide element 210) of the first liquid guide element 210 is arranged towards the liquid storage cavity A, i.e. close to or facing the liquid storage cavity A, to absorb the liquid matrix in the liquid storage cavity A; the lower surface (the second surface of the first liquid guide element 210) of the first liquid guide element 210 is supported by the first support portion 211d, i.e. the lower surface of the first liquid guide element 210 abuts against the first support portion 211d. In this way, the lower surface of the first liquid guide element 210, the first support portion 211d and the inner side surface of the bracket 211 jointly define a buffer cavity C, which is located between the first support portion 211d and the inner side surface of the bracket 211, the lower surface of the first liquid guide element 210 covers the buffer cavity C, and the buffer cavity C is arranged along the circumference of the inner side surface of the bracket 211 or surrounds the atomizing core.

[0076] It should be understood in conjunction with Figure 11 The sealing member 212 is made of a flexible material, such as silica gel. The sealing member 212 is in a cylindrical shape. The lower end of the sealing member 212 is sleeved on the bottom cover 202, and the end face of the lower end of the sealing member 212 abuts against the step 202i of the bottom cover 202.

[0077] The support 211 is at least partially accommodated in the sealing member 212.

[0078] In an example, the outer side surface of the sealing member 212 has one or more protruding sealing rings 212a. The sealing rings 212a can better form a seal between the main shell 201 and the bottom cover 202 and / or between the main shell 201 and the support 211.

[0079] In an example, the inner side surface of the sealing member 212 has a step 212b. When the support 211 is assembled in the sealing member 212, the end face of the upper end of the support 211 can abut against the step 212b, so that the support 211 is axially limited, achieving the effect of being assembled in place.

[0080] In a preferred implementation, the end face of the upper end of the sealing member 212 is substantially flush with the end face of the upper end of the connecting pipe 209, or the end face of the upper end of the sealing member 212 is closer to the proximal end of the main shell 201 than the end face of the upper end of the connecting pipe 209. In this way, when the main shell 201 is made of a transparent material, the user can observe the remaining amount of the liquid matrix of the liquid storage cavity A through the main shell 201, but cannot observe the atomizing core, thereby improving the aesthetics of the atomizer 20.

[0081] In a preferred implementation, the support 211 is located in the sealing member 212. When the main shell 201 is connected with the bottom cover 202, part of the sealing member 212 is clamped between the inner side surface of the main shell 201 and the outer side surface of the bottom cover 202, and part of the sealing member 212 is clamped between the inner side surface of the main shell 201 and the outer side surface of the support 211, i.e., part of the sealing member 212 surrounds the outer side surface of the support 211, thereby achieving sealing.

[0082] In order to achieve air pressure balance between the liquid storage cavity A and the outside, for example, when the air pressure in the liquid storage cavity A is low due to consumption of the liquid matrix, external air can be supplemented to the liquid storage cavity A, thereby achieving air pressure balance between the liquid storage cavity A and the outside. The support 211 further has an air exchange channel that communicates the liquid storage cavity A with the outside atmospheric pressure, so as to achieve air exchange or air intercommunication between the liquid storage cavity A and the outside atmospheric pressure.

[0083] Specifically, the air exchange channel comprises an air exchange groove 212e arranged on the inner side surface of the bracket 211 and an air passage groove 211g arranged on the outer side surface of the bracket 211, wherein the air passage groove 211g arranged on the outer side surface of the bracket 211 is at least partially covered (wrapped or covered) by the sealing member 212, that is, the sealing member 212 defines at least part of the boundary of the air exchange channel. One end of the air exchange groove 212e communicates with the air passage groove 211g on the outer side surface of the bracket 211 through the through hole 211f, and the through hole 211f also communicates with the buffer cavity C. The other end of the air exchange groove 212e extends towards and communicates with the liquid storage cavity A, and the air exchange groove 212e at least partially extends along the inner side surface of the bracket 211 and the outer side surface of the first liquid guide element 210. The air passage groove 211g can communicate with the airflow channel in the housing of the atomizer 20, thereby communicating with the external atmospheric pressure.

[0084] The configuration of the air passage groove 211g includes but is not limited to, for example: the outer side surface of the bracket 211 is provided with longitudinally spaced first and second convex walls 211g1 and 211g2, and first and second partitions 211g3 and 211g4 connected between the first and second convex walls 211g1 and 211g2; the first and second partitions 211g3 and 211g4 are arranged in a spaced manner, and the air passage groove 211g is arranged between the first and second partitions 211g3 and 211g4; a first slot 211g5 is formed on the first partition 211g3 close to the first convex wall 211g1, and a second slot 211g6 is formed on the second partition 211g4 close to the second convex wall 211g2; the first slot 211g5 is adjacent to the second slot 211g6 and is arranged in a staggered manner along the axial direction of the bracket 211.

[0085] It can be understood that it is also feasible to connect a plurality of groups of first and second partitions 211g3 and 211g4 between the first and second convex walls 211g1 and 211g2; it is also feasible to arrange a plurality of partitions along the circumferential direction of the bracket 211, and to arrange slots on the partitions to communicate adjacent two air passage grooves 211g; and it is also feasible to arrange a plurality of air passage grooves 211g between the first and second partitions 211g3 and 211g4.

[0086] It should be noted that it is also feasible to arrange the air passage groove 211g along the axial direction of the bracket 211 (for the arrangement of the corresponding convex wall and partition, refer to the foregoing).

[0087] In the air passage groove 211g, one of the air passage grooves 211g close to the liquid storage cavity A can communicate with the air exchange groove 212e and the buffer cavity C through the through hole 211f, and one of the air passage grooves 211g close to the cavity 202a can communicate with the cavity 202a, thereby communicating with the airflow channel in the housing of the atomizer 20.

[0088] In this way, when the liquid storage cavity A has a small air pressure due to consumption of the liquid matrix, external air can be supplemented to the liquid storage cavity A through the air vent groove 211g, the through hole 211f and the air exchange groove 212e, so as to balance the air pressure of the liquid storage cavity A with the outside.

[0089] The above-mentioned buffer cavity C can buffer the overflow of the liquid matrix of the first liquid guide element 210 or the overflow of the liquid matrix due to the change of the air pressure of the liquid storage cavity A. In addition, when the air pressure of the liquid storage cavity A changes, the liquid matrix flowing back from the air vent groove 211g can also be buffered in the buffer cavity C. Therefore, the stability of the liquid guide can be ensured through the buffer cavity C, and the risk of liquid leakage can be reduced, for example, the overflow of the liquid matrix flows towards the atomizing core, thereby leaking towards the bottom cover 202.

[0090] The above-mentioned air vent groove 211g can buffer the overflow of the liquid matrix and reduce the risk of liquid leakage. In addition, when the air pressure changes, the buffered liquid matrix can flow back to the liquid storage cavity A or the buffer cavity C. In addition, the structural design of the air vent groove 211g, for example, the staggered arrangement between the first slot 211g5 and the second slot 211g6, can ensure that the atomizer 20 can vent and buffer the liquid matrix when placed in any direction, for example, in a normal, side or upside-down state. In addition, when the atomizer 20 is in a normal state, the first partition plate 211g3 can prevent the buffered liquid matrix from flowing towards the cavity 202a to a certain extent, thereby reducing the risk of liquid leakage. When the atomizer 20 is in an upside-down state, the second partition plate 211g4 can also prevent the buffered liquid matrix from flowing towards the through hole 211f to a certain extent, thereby also reducing the risk of liquid leakage.

[0091] The bottom of the bracket 211 is further provided with a slot 212h and a slot 212i. The first lead 207 can extend from the first air inlet 211j of the bracket 211 and can extend into the slot 212h after being bent. The second lead 208 can extend from the first air inlet 211j of the bracket 211 and can extend into the slot 212i after being bent. The conductive part 203a of the first electrode column 203 can pass through the first electrode hole 202b and be inserted into the slot 212h, thereby maintaining contact with the first lead 207 to form an electrical connection. The conductive part of the second electrode column 204 can pass through the second electrode hole 202c and be inserted into the slot 212i, thereby maintaining contact with the second lead 208 to form an electrical connection. In this way, automatic assembly is facilitated without the need for glue sealing. In further implementations, the sidewall of the slot 212h and / or the slot 212i is further provided with a slot (not shown), which facilitates the bending of the lead and avoids damage to the atomizing core during bending assembly. In addition, the slot improves the flexibility of the slot.

[0092] The bottom of the bracket 211 is further provided with a first air inlet 211j. The first air inlet 211j is generally trumpet-shaped, i.e. the inner diameter of the first air inlet 211j gradually increases along the direction from the top to the bottom of the bracket 211, the inner side surface of the first air inlet 211j has a drainage surface 212k inclined towards the inner side surface of the cavity 202a, and part of the inner side surface of the first air inlet 211j is coplanar with the inner side surface of the second support portion 211c. After the external air flows into the cavity 202a through the second air inlet 202d, it can flow into the bracket 211 through the first air inlet 211j. The upper end of the first protruding column forming the second air inlet 202d is arranged close to the first air inlet 211j. In a preferred implementation, the upper end of the first protruding column forming the second air inlet 202d is spaced apart from the first air inlet 211j by a gap, which is between 0.5 mm and 2 mm (including the end values, the same below), or between 0.7 mm and 2 mm, or between 0.8 mm and 2 mm, or between 1 mm and 2 mm, or between 1 mm and 1.8 mm.

[0093] By Figure 3 Or Figure 4 As can be seen, the second air inlet 202d, the first air inlet 211j, the atomizing core (the second liquid guide element 205 in the tubular structure), the connecting pipe 209, the transmission pipe 201d and the air outlet 201a are coaxially arranged, so that the airflow channel in the shell of the atomizer 20 forms a straight-through air passage, improving the smoothness of the suction.

[0094] The liquid substrate overflowing through the groove 211c1 of the second support portion 211c in the collection cavity B or the liquid substrate falling from the atomizing core can be drained along the inner side surface of the first air inlet 211j into the cavity 202a of the bottom cover 202, without accumulating and then falling into the second air inlet 202d, reducing the risk of leakage of the liquid substrate from the second air inlet 202d.

[0095] In a further embodiment, the bottom of the support 211 is further provided with one or more drainage grooves 212m. The drainage grooves 212m extend from the drainage surface 212k to the bottom or the sidewall of the support 211, preferably, the drainage grooves 212m extend from the drainage surface 212k to the sidewall of the support 211. Since the bottom of the support 211 is supported by the third support portion 202h, one end of the drainage grooves 212m is arranged close to the inner side surface of the cavity 202a or close to the third support portion 202h. The liquid substrate overflowing from the collection cavity B or the liquid substrate dropped from the atomizing core can be drained to the inner side surface of the cavity 202a and flow onto the bottom wall of the cavity 202a or flow along the third support portion 202h and flow onto the bottom wall of the cavity 202a when flowing to the drainage surface 212k. In a preferred embodiment, one end of the drainage grooves 212m is close to the aforementioned set of support portions, the liquid substrate overflowing from the collection cavity B or the liquid substrate dropped from the atomizing core can flow along the gap between the two third support portions 202h and flow to the bottom of the cavity 202a when flowing to the drainage surface 212k.

[0096] The bottom of the support 211 is further provided with a second boss 212n. The second boss 212n protrudes or extends towards the direction away from the bottom of the support 211 or towards the direction of the bottom cover 202. The drainage surface 212k stops at the second boss 212n, and the drainage grooves 212m pass through the second boss 212n. When the atomizer 20 is inverted, the liquid substrate accumulated in the cavity 202a of the bottom cover 202 can be blocked by the second boss 212n, avoiding flowing from the first air inlet 211j and then flowing out from the air outlet 201a, thereby improving the user experience.

[0097] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but the present application can be implemented in many different forms, and is not limited to the embodiments described in the specification. These embodiments are not additional limitations on the content of the present application, and the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Furthermore, the above technical features continue to be combined with each other, forming various embodiments not listed above, which are all considered within the scope of the present application. Furthermore, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes should be within the scope of protection of the appended claims of the present application.

Claims

1. An atomizer characterized by, The application relates to a shell, a liquid storage cavity arranged in the shell for storing a liquid medium, an atomization core for atomizing the liquid medium to generate an aerosol, a support arranged in the shell for holding the atomization core, a first liquid guide element configured to absorb the liquid medium in the liquid storage cavity to deliver the absorbed liquid medium to the atomization core, wherein the first liquid guide element is at least partially accommodated in the support, and the first liquid guide element has oppositely arranged first and second surfaces, the first surface faces the liquid storage cavity, and the second surface and the support define a buffer cavity for buffering the liquid medium. The support is provided with a first support part, the buffer cavity is formed between the first support part and the inner side surface of the support, and the first support part is in abutment with the second surface. The support is provided with a ventilation channel, the ventilation channel communicates the liquid storage cavity with the external atmospheric pressure to realize air communication between the liquid storage cavity and the external atmospheric pressure. The buffer cavity communicates with the liquid storage cavity through the ventilation channel, and the buffer cavity can buffer the liquid medium backflowing from the ventilation channel. The ventilation channel comprises a ventilation groove arranged on the outer side surface of the support, the buffer cavity communicates with the ventilation groove to buffer the liquid medium backflowing from the ventilation groove. The outer side surface of the support is spaced by a partition plate to form a plurality of ventilation grooves arranged along the circumferential direction of the support, and the partition plate is provided with a slot to communicate two adjacent ventilation grooves.

2. The atomizer of claim 1, wherein, The slots formed on the adjacent two partition plates are arranged in a staggered manner along the axial direction of the support.

3. The atomizer of claim 1, wherein, The ventilation channel comprises a ventilation groove arranged on the inner side surface of the support, the ventilation groove communicates with the buffer cavity and the ventilation groove. The ventilation groove at least partially extends along the inner side surface of the support, and the ventilation channel is at least partially defined between the ventilation groove and the outer side surface of the first liquid guide element.

4. The atomizer of claim 3, wherein, The shell is further provided with a sealing element, the sealing element is at least partially clamped between the inner side surface of the shell and the outer side surface of the support.

5. The atomizer of claim 4, wherein, The shell is further provided with a connecting pipe, at least part of the connecting pipe is accommodated in the support.

6. The atomizer of claim 5, wherein, The atomization core is accommodated in the connecting pipe, the first liquid guide element is arranged on the outer side surface of the connecting pipe in a surrounding manner, and the connecting pipe further has a liquid inlet, the liquid medium absorbed by the first liquid guide element is delivered to the atomization core through the liquid inlet.

7. The atomizer of claim 4, wherein, The support is further provided with a boss, the boss further has a second support part extending towards the atomization core.

8. The atomizer of claim 7, wherein, One end of the connecting pipe is inserted into the support and is in abutment with the boss, and the atomization core is supported on the second support part.

9. The atomizer of claim 3, wherein, A collection cavity is formed between the inner side surface of the support, the boss and the second support part, and the collection cavity can collect the liquid medium leaked from the atomization core. ​ 10. The atomizer of claim 1, wherein, ​ ​ 11. The atomizer of claim 10, wherein, ​ ​ 12. The atomizer of claim 11, wherein, ​ 13. The atomizer of claim 1, wherein, The atomization core comprises a second liquid guiding element for absorbing the liquid substrate and a heating element for heating the atomized liquid substrate to generate an aerosol, and the second liquid guiding element indirectly receives the liquid substrate in the liquid storage cavity through the first liquid guiding element.

14. An atomiser characterised in that, The application relates to an atomizer. The application relates to an atomizer. The application relates to an atomizer. The application relates to an atomizer. The application relates to an atomizer. The application relates to an atomizer.

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