Atomizer and electronic atomization device

Abstract

The utility model provides an atomizer and an electronic atomization device. The atomizer comprises a shell; the shell is internally provided with a liquid storage cavity; an 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; the sealing piece is provided with a first surface which is kept in contact with the shell and a second surface which is opposite to the first surface; the second surface and the first liquid guide element are arranged at an interval, and a buffer cavity is formed between the second surface and the first liquid guide element; the buffer cavity is communicated with the liquid storage cavity and the outside of the shell, and the buffer cavity can be used for temporarily storing the liquid matrix overflowing from the liquid storage cavity and / or the first liquid guide element. According to the atomizer and the electronic atomization device, the liquid matrix overflowing from the liquid storage cavity and / or the liquid guide element is temporarily stored through the buffer cavity, the liquid matrix can be prevented from leaking under the condition that the atomizer is placed in any direction, the liquid leakage problem occurring in the high-altitude low-pressure environment and other environments is solved, 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 inhale 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] In the case where the ambient environment of the atomizer changes, such as in a low-pressure transport environment at high altitude, there is a pressure difference between the internal pressure of the atomizer and the external pressure. This pressure difference can easily cause the atomizer to leak liquid, especially when the atomizer is in an inverted state. 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 of existing electronic atomization devices in low-pressure environments such as high altitudes.

[0005] In one aspect, the present application provides an atomizer, comprising a housing; the housing is provided with:

[0006] a liquid storage cavity for storing a liquid substrate;

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

[0008] a first liquid guide element configured to draw the liquid substrate in the liquid storage cavity to deliver the drawn liquid substrate to the atomization core;

[0009] a sealing element having a first surface in contact with the housing and a second surface opposite the first surface; the second surface is spaced apart from the first liquid guide element and forms a buffer cavity between the second surface and the first liquid guide element;

[0010] wherein the buffer cavity is in communication with the liquid storage cavity and the housing outside, and the buffer cavity can be used to temporarily store the liquid substrate overflowing from the liquid storage cavity and / or the first liquid guide element.

[0011] In one example, the housing is provided with an air inlet and an air outlet, and the housing is provided with an air flow channel extending from the air inlet to the air outlet; the buffer cavity is in communication with the air flow channel, thereby in communication with the housing outside.

[0012] In an example, the distance between the second surface and the first liquid guiding element is between 0.3mm and 2mm.

[0013] In an example, the housing further comprises a support, and at least part of the first liquid guiding element is accommodated in the support.

[0014] In an example, the support has an opening on the part of the sidewall between the second surface and the first liquid guiding element, so as to form the buffer cavity between the second surface and the first liquid guiding element.

[0015] In an example, the support and the sealing element have an air exchange channel, and the buffer cavity communicates with the liquid storage cavity through the air exchange channel.

[0016] In an example, the support has a groove on the part of the outer surface in contact with the sealing element, and the groove defines at least part of the boundary of the air exchange channel.

[0017] In an example, the support has a ventilation groove, and the buffer cavity communicates with the outside of the housing through the ventilation groove.

[0018] In an example, the ventilation groove protrudes from the bottom of the buffer cavity at one end of the buffer cavity.

[0019] In an example, the distance between the ventilation groove and the bottom of the buffer cavity is between 0.5mm and 2mm.

[0020] In an example, the housing further comprises a connecting tube, and at least part of the connecting tube is accommodated in the support.

[0021] The atomizing core is accommodated in the connecting tube, and the first liquid guiding 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 guiding element is delivered to the atomizing core through the liquid inlet.

[0022] In an example, the distance between the liquid inlet and the bottom of the buffer cavity is between 0.5mm and 2mm; and / or, the distance between the liquid inlet and the top of the buffer cavity is between 0.5mm and 2mm.

[0023] In an example, one end of the first liquid guiding element is supported on the support, and the other end of the first liquid guiding element is arranged close to the liquid storage cavity and clamped between the connecting tube and the support.

[0024] In an example, the first liquid guiding element has a tubular structure, and the first liquid guiding element is sleeved on the connecting tube.

[0025] In an example, the support is at least partially housed in the seal.

[0026] In an example, the housing comprises a main shell and a bottom cover detachably connected with the main shell, and the support is supported on the bottom cover.

[0027] In an example, the support is detachably connected with the bottom cover.

[0028] In an example, the seal is at least partially sandwiched between the main shell and the bottom cover.

[0029] In an example, the buffer cavity is arranged around the first liquid guide element.

[0030] In an example, the atomizing 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.

[0031] Another aspect of the present application provides an electronic atomizing device comprising the foregoing atomizer and a power assembly detachably connected with the atomizer.

[0032] The foregoing atomizer and electronic atomizing device temporarily store the liquid substrate overflowing from the liquid storage cavity and / or the liquid guide element in the buffer cavity, thereby preventing the liquid substrate from leaking in any orientation, solving the problem of liquid leakage in high-altitude low-pressure environment, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0033] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which are shown by way of example, not limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements and in which:

[0034] Figure 1 is a schematic diagram of an electronic atomizing device provided by an embodiment of the present application;

[0035] Figure 2 is a schematic diagram of an atomizer provided by an embodiment of the present application;

[0036] Figure 3 is a schematic diagram of a cross section of an atomizer provided by an embodiment of the present application;

[0037] Figure 4 is a schematic diagram of an atomizer provided by an embodiment of the present application; Figure 3

[0038] Figure 5 is a schematic diagram of an atomizer provided by an embodiment of the present application;

[0039] Figure 6 ​is a schematic view of a bottom cover provided by an embodiment of the present application;

[0040] Figure 7 is a schematic view of a bracket provided by an embodiment of the present application;

[0041] Figure 8 is a schematic view of a cross section of the bracket provided by an embodiment of the present application;

[0042] Figure 9 is a schematic view of a cross section of the seal provided by an embodiment of the present application;

[0043] Figure 10 is a schematic view of an atomizer in an upside-down state provided by an embodiment of the present application;

[0044] Figure 11 is a schematic view of an atomizer in a side-down state provided by an embodiment of the present application. DETAILED DESCRIPTION

[0045] For the purpose of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will, nevertheless, be understood that no limitation of the scope of the application is intended by the use of such specific language. For the purpose of simplicity and clarity, the technical and scientific terms used herein are intended to refer to well-known entities which are commonly used and appreciated by one having ordinary skill in the art, which entities need not be specifically described herein.

[0046] 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 of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description of the application, the terms "and / or" includes any and all combinations of one or more of the associated listed items.

[0047] As used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of components, or parts of components, in an electronic atomizer, in the direction of flow of the suction air flow.

[0048] Figure 1 is a schematic view of an electronic atomizer provided by an embodiment of the present application.

[0049] As Figure 1As shown, the electronic atomization device 100 comprises an atomizer 10 and a power supply assembly 20. The atomizer 10 is detachably connected with the power supply assembly 20, for example, by interference fit, snap or magnetic attraction. It can be understood that in other examples, the atomizer 10 is non-detachably connected with the power supply assembly 20.

[0050] The atomizer 10 is used to atomize a liquid substrate to generate an aerosol.

[0051] The power supply assembly 20 comprises an electric cell 21 and a circuit 22.

[0052] The electric cell 21 provides power for operating the electronic atomization device 100. The electric cell 21 can be a rechargeable cell or a disposable cell.

[0053] The circuit 22 can control the overall operation of the electronic atomization device 100. The circuit 22 not only controls the operation of the electric cell 21 and the atomizer 10, but also controls the operation of other elements in the electronic atomization device 100.

[0054] Figures 2 to 5 A structural schematic diagram of an atomizer of one embodiment is shown; in the atomizer 10 of this embodiment, it comprises:

[0055] The main shell 101 is generally cylindrical. The main shell 101 has a proximal end and a distal end opposite along the length direction. The proximal end is provided with an air outlet 101a for the aerosol to flow out, and the distal end is configured as one end for combination with the power supply assembly 20. The distal end of the main shell 101 is open, and a detachable bottom cover 102 is mounted thereon. After being combined with the bottom cover 102, the main shell 101 and the bottom cover 102 jointly define the shell of the atomizer 10, and the inside of the shell is hollow and provided with necessary functional devices for storing and atomizing the liquid substrate; through the opening of the main shell 101, each necessary functional component can be mounted into the inside of the shell of the atomizer 10.

[0056] Please refer to Figure 6For better understanding, the bottom cover 102 has a cavity 102a, and the bottom wall of the cavity 102a has two protruding columns. One of the protruding columns is provided with a through hole to form a first electrode hole 102b, and the conductive part 103a of the first electrode 103 is at least partially received in the first electrode hole 102b, and the connecting part 103b of the first electrode 103 is exposed on the outer surface of the bottom cover 102. The other protruding column is provided with another through hole to form a second electrode hole 102c, and the conductive part of the second electrode 104 is at least partially received in the second electrode hole 102c, and the connecting part of the second electrode 104 is exposed on the outer surface of the bottom cover 102. Through the first electrode 103 and the second electrode 104, the atomizer 10 can be electrically connected with the power supply assembly 20. Another protruding column is further provided between the above two protruding columns, and the other protruding column is provided with a through hole to form an air inlet 102d. The shell has an air flow channel extending from the air inlet 102d to the air outlet 101a. Specifically, in the process of suction, the external air enters the atomizer 10 through the air inlet 102d, mixes with the generated aerosol, and then flows out of the atomizer 10 through the air outlet 101a (as shown by the dashed arrow S1 in the figure). The above-mentioned other protruding column can also prevent the liquid substrate flowing into the cavity 102a from directly flowing out of the air inlet 102d to the power supply assembly 20.

[0057] The main shell 101 and the bottom cover 102 can be connected in a detachable manner. In a preferred embodiment, the main shell 101 is provided with a clamping hole 101b, and the bottom cover 102 is provided with a clamping buckle 102e which is clamped with the clamping hole 101b.

[0058] The main shell 101 is further provided with a notch groove 101c, and the bottom cover 102 is provided with a protruding block 102f. When the main shell 101 and the bottom cover 102 are assembled, the notch groove 101c can be aligned with the protruding block 102f, and after assembly, the protruding block 102f is clamped in the notch groove 101c. Through the notch groove 101c and the protruding block 102f, the positioning function can be achieved, which is convenient for assembly.

[0059] The shell of the atomizer 10 is provided with a liquid storage cavity A, a second liquid guiding element 105, a heating element 106, a first lead wire 107, a second lead wire 108, a connecting pipe 109, a first liquid guiding element 110, a bracket 111, and a sealing element 112.

[0060] The main housing 101 further has an axially extending transmission pipe 101d inside, and a space between the outer surface of the transmission pipe 101d and the inner surface of the main housing 101 forms a liquid storage cavity A for storing the liquid substrate. The hollow portion inside the transmission pipe 101d forms a partial airflow passage, and one end of the transmission pipe 101d is in communication with the air outlet 101a, so as to transmit the aerosol generated by the atomization of the heating element 106 to the air outlet 101a. In a preferred implementation, the transmission pipe 101d and the main housing 101 are integrally molded by using a moldable material, and the liquid storage cavity A formed after the preparation is open at the distal end.

[0061] The second liquid guide element 105 and the heating element 106 constitute an atomization core, which can atomize the liquid substrate and generate the aerosol. Specifically, the second liquid guide element 105 can absorb the liquid substrate and deliver the absorbed liquid substrate to the heating element 106. The second liquid guide element 105 is generally in a tubular structure. It can be understood that in other examples, it can also be in a plate-like structure or other regular or irregular shapes. The second liquid guide element 105 can be made of a flexible fiber material, such as cotton fiber, non-woven fabric or sponge, etc. Alternatively, in other examples, the second liquid guide element 105 can also be a rigid porous body, such as porous ceramic, porous glass, etc. The outer side surface of the second liquid guide element 105 has a radially outwardly extending protruding portion 105a.

[0062] The heating element 106 can be heated by an electric current supply and deliver heat to the liquid substrate in contact with the heating element 106 to heat the liquid substrate, thereby generating the aerosol. The heating element 106 is arranged close to the inner side surface of the second liquid guide element 105, which can be attached to the inner side surface of the second liquid guide element 105, or partially or completely embedded in the second liquid guide element 105. The heating element 106 can be a resistance heating net, a resistance heating coil, etc. The heating element 106 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 an example, the heating element 106 can be wound from a sheet-like or net-like base material, and the wound heating element 106 is in a non-closed tubular structure in the circumferential direction, i.e., a tubular structure having a side opening extending in the length direction or the axial direction of the atomizer 10.

[0063] The two ends of the heating element 106 are welded or arranged with a first lead wire 107 and a second lead wire 108, the first lead wire 107 is in contact with the conductive part 103a of the first electrode 103 to form an electrical connection, and the second lead wire 108 is in contact with the conductive part of the second electrode 104 to form an electrical connection. Specifically, the first lead wire 107 and the second lead wire 108 extend from the bottom of the bracket 111 and are bent to be retained on the bottom of the bracket 111, and the conductive part 103a of the first electrode 103 and the conductive part of the second electrode 104 abut on the bottom of the bracket 111, thereby being in contact with the first lead wire 107 and the second lead wire 108.

[0064] The second liquid guide element 105 and the heating element 106 are both accommodated in the connecting pipe 109. The first liquid guide element 110 is arranged on the outer surface of the connecting pipe 109, specifically, the tubular structure of the first liquid guide element 110 is sleeved on the connecting pipe 109, preferably, the inner diameter of the first liquid guide element 110 is slightly smaller than the outer diameter of the connecting pipe 109, so that the first liquid guide element 110 is tightly sleeved on the connecting pipe 109. The connecting pipe 109 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 109. The sidewall of the connecting pipe 109 also has a liquid guide opening 109a, the first liquid guide element 110 covers the liquid guide opening 109a, and part of the second liquid guide element 105 is exposed in the liquid storage cavity A through the liquid guide opening 109a, so that the part of the second liquid guide element 105 is arranged close to or in contact with the first liquid guide element 110, and the liquid matrix in the liquid storage cavity A can be sucked by the first liquid guide element 110 to flow into the atomizing core through the liquid guide opening 109a, i.e. be sucked by the second liquid guide element 105, and be atomized by the heating element 106 to generate the inhalable aerosol. Advantageously, by the second liquid guide element 105 sucking the liquid matrix from the first liquid guide element 110, it can be avoided that the liquid matrix is excessively delivered to the heating element 106.

[0065] In an example, the first liquid guide element 110 can be made of an organic porous material with elasticity, which presents moderate flexibility and rigidity. In implementation, the first liquid guide element 110 has an elastic modulus or rigidity smaller than that of the material of the bracket 111 and larger than that of the material of the second liquid guide element 105. Specifically, it is hard cotton with a Shore hardness of 20-70A. In alternative implementation, the first liquid guide element 110 is hard cotton including oriented polyester fibers, or hard cotton or artificial foam made of filamentous polyurethane, etc.

[0066] The side wall of the connecting pipe 109 is further provided with a notch groove 109b extending from the lower end of the connecting pipe 109 towards the upper end of the connecting pipe 109. The protruding portion 105a of the second liquid guiding element 105 extends into the notch groove 109b and is thus exposed in the liquid storage cavity A. After assembly, the first liquid guiding element 110 is in contact with part of the protruding portion 105a, thereby facilitating the second liquid guiding element 105 to absorb the liquid substrate.

[0067] It should be noted that the liquid guiding opening 109a and the notch groove 109b define a liquid inlet of the connecting pipe 109, through which the external liquid substrate can flow into the connecting pipe 109.

[0068] It should be noted that the liquid guiding opening 109a and the notch groove 109b define a liquid inlet of the connecting pipe 109, through which the external liquid substrate can flow into the connecting pipe 109. Figures 7-8 It should be noted that the liquid guiding opening 109a and the notch groove 109b define a liquid inlet of the connecting pipe 109, through which the external liquid substrate can flow into the connecting pipe 109.

[0069] The bracket 111 and the bottom cover 102 can be connected in a snap-fit manner. In a preferred implementation, the bottom cover 102 is further provided with a clamping hole 102g, and the bracket 111 is provided with a clamping buckle 111a which is snap-fitted with the clamping hole 102g.

[0070] The bottom of the bracket 111 can be supported on the bottom cover 102. In a preferred implementation, the bottom cover 102 is further provided with a support portion 102h which is located in the cavity 102a and protrudes from the bottom wall of the cavity 102a, and the bottom of the bracket 111 can be supported on the support portion 102h.

[0071] The bracket 111 is generally in a cylindrical structure, and the external air flows into the cavity 102a through the air inlet 102d, then flows into the bracket 111, mixes with the aerosol generated by the atomizing core, and then flows into the transmission pipe 101d, and finally flows out from the air outlet 101a.

[0072] At least part of the connecting pipe 109 is accommodated in the bracket 111. Specifically, the inner surface of the bracket 111 has a boss 111b, for example, extending radially inwardly from the inner surface of the bracket 111. The upper end of the connecting pipe 109 is connected with the transmission pipe 101d, for example, the upper end of the connecting pipe 109 is sleeved on the transmission pipe 101d; the lower end of the connecting pipe 109 is inserted into the connecting pipe 109 and abuts against the boss 111b. Further, the boss 111b is further provided with a support portion 111c extending axially towards the air outlet 101a, and when the lower end of the connecting pipe 109 is inserted into the connecting pipe 109, the second liquid guiding element 105 can be supported by the support portion 111c.

[0073] The side wall of the bracket 111 is provided with opposite first and second openings 111d and 111e. At least part of the first liquid guide element 110 is accommodated in the bracket 111. Specifically, a support portion 111f is arranged near the first and / or second openings 111d and 111e, the lower end of the first liquid guide element 110 can be inserted into the bracket 111 and supported on the support portion 111f, and the upper end of the first liquid guide element 110 is arranged near the liquid storage cavity A and clamped between the upper end of the bracket 111 and the connecting pipe 109. In this way, the liquid matrix in the liquid storage cavity A can be absorbed by the upper end of the first liquid guide element 110 and flow towards the lower end of the first liquid guide element 110.

[0074] Please understand that Figure 9 The sealing member 112 can be made of a flexible material, such as silicone, etc. The sealing member 112 is in the shape of a cylinder. The lower end of the sealing member 112 is sleeved on the bottom cover 102, and the end face of the lower end of the sealing member 112 abuts against the step 102i of the bottom cover 102. The bracket 111 is at least partially accommodated in the sealing member 112, and in a preferred embodiment, the bracket 111 is located in the sealing member 112. When the main shell 101 is connected with the bottom cover 102, part of the sealing member 112 is clamped between the main shell 101 and the bottom cover 102, and part of the sealing member 112 is clamped between the main shell 101 and the bracket 111, thereby achieving sealing.

[0075] Further, the outer surface of the sealing member 112 has one or more protruding sealing rings 112a, which can better form a seal between the main shell 101 and the bottom cover 102 and / or between the main shell 101 and the bracket 111.

[0076] Further, the inner surface of the sealing member 112 has a step 112b. When the bracket 111 is assembled in the sealing member 112, the end face of the upper end of the bracket 111 can abut against the step 112b, so that the bracket 111 can be axially limited and achieve the effect of being assembled in place.

[0077] Due to the presence of the first and second openings 111d and 111e, part of the outer surface of the first liquid guide element 110 located in the bracket 111 is spaced apart from and forms a buffer cavity B between the inner surface of the sealing member 112. Specifically, the outer surface of the part of the first liquid guide element 110 located in the bracket 111, the inner surface of the sealing member 112, and the bracket 111 jointly define the buffer cavity B, which surrounds the first liquid guide element 110.

[0078] The bracket 111 is provided with a vent groove 111g. The vent groove 111g is located at one end of the buffer cavity B and is closer to the connecting tube 109 than to the sealing member 112. The buffer cavity B can communicate with the airflow passage in the housing through the vent groove 111g, thereby communicating with the outside of the atomizer 10. The buffer cavity B can also communicate with the liquid storage cavity A through the air exchange passage C between the bracket 111 and the sealing member 112. For example, the bracket 111 is provided with a groove 111h on the outer surface of the portion in contact with the sealing member 112. After assembly, the groove 111h defines at least part of the boundary of the air exchange passage C.

[0079] For a better understanding, Figure 4 It is understood that the distance between the outer surface of the portion of the first liquid guide element 110 located in the bracket 111 and the inner surface of the sealing member 112 is H1. Generally, H1 is between 0.3 mm and 2 mm, or between 0.3 mm and 1.5 mm, or between 0.3 mm and 1 mm, or between 0.3 mm and 0.8 mm.

[0080] The vent groove 111g protrudes from the bottom of the buffer cavity B at one end of the buffer cavity B. Specifically, the distance between the vent groove 111g and the bottom of the buffer cavity B at one end of the buffer cavity B is H2. Generally, H2 is between 0.5 mm and 2 mm, or between 0.5 mm and 1.5 mm, or between 0.5 mm and 1 mm.

[0081] The distance between the bottom of the buffer cavity B and the liquid inlet (i.e. the liquid guide opening 109a or the notch groove 109b) is H3. Generally, H3 is between 0.5 mm and 2 mm, or between 0.5 mm and 1.5 mm, or between 0.5 mm and 1 mm. As described above and shown in the drawings, H3 is greater than H2.

[0082] The distance between the top of the buffer cavity B and the liquid inlet (i.e. the liquid guide opening 109a or the notch groove 109b) is H4. Generally, H4 is between 0.5 mm and 2 mm, or between 0.5 mm and 1.5 mm, or between 0.5 mm and 1 mm.

[0083] For a better understanding, Figures 3-4It is understood that when the atomizer 10 is in the upright state, the storage cavity A can be balanced with the air pressure outside through the air exchange channel C, the buffer cavity B and the ventilation groove 111g; the buffer cavity B can temporarily store the liquid matrix overflowing from the storage cavity A. Due to the above-mentioned distance, the temporarily stored liquid matrix in the buffer cavity B will not leak out through the ventilation groove 111g. Even if a small part of the liquid matrix leaks out through the ventilation groove 111g, the leaked liquid matrix will be temporarily stored in the cavity 102a of the bottom cover 102 and will not flow out from the air inlet 102d to the power supply assembly 20. For example, when the storage cavity A has a low air pressure due to the consumption of the liquid matrix, external air can be supplemented to the storage cavity A through the ventilation groove 111g, the buffer cavity B and the air exchange channel C, so as to balance the air pressure of the storage cavity A with the outside. When the external environment changes to have a low air pressure (for example, a low-pressure transportation environment at high altitude), the storage cavity A can also balance the air pressure with the outside through the air exchange channel C, the buffer cavity B and the ventilation groove 111g. At this time, the liquid matrix overflowing from the air exchange channel C or the first liquid guide element 110 can be temporarily stored in the buffer cavity B.

[0084] For reference Figure 10 It is understood that when the atomizer 10 is in the upside-down state, when the external environment changes to have a low air pressure (for example, a low-pressure transportation environment at high altitude), the liquid matrix in the storage cavity A can overflow from the air exchange channel C or the first liquid guide element 110, and the overflowing liquid matrix can be temporarily stored in the buffer cavity B. Due to the above-mentioned distance, the temporarily stored liquid matrix in the buffer cavity B will not leak out through the ventilation groove 111g. When the external environment recovers, the liquid matrix temporarily stored in the buffer cavity B can flow back to the storage cavity A through the air exchange channel C or the first liquid guide element 110.

[0085] For reference Figure 11 It is understood that when the atomizer 10 is in the upside-down state, when the external environment changes to have a low air pressure (for example, a low-pressure transportation environment at high altitude), the liquid matrix in the storage cavity A can overflow from the air exchange channel C or the first liquid guide element 110, and the overflowing liquid matrix can be temporarily stored in the buffer cavity B. Due to the above-mentioned distance, the temporarily stored liquid matrix in the buffer cavity B will not leak out through the ventilation groove 111g. When the external environment recovers, the liquid matrix temporarily stored in the buffer cavity B can flow back to the storage cavity A through the air exchange channel C or the first liquid guide element 110.

[0086] From the above analysis, it can be seen that in any direction, the atomizer 10 can ensure that the liquid matrix will not leak out through the buffer cavity B, and the storage cavity A can be balanced with the air pressure outside through the air exchange channel C, the buffer cavity B and the ventilation groove 111g.

[0087] It should be noted that the preferred embodiments of the present application are described in the specification and its attached drawings, but the present application can be implemented in many different forms and is not limited to the embodiments described in the specification, and these embodiments are not intended to be 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, each of the above technical features continues to combine to form various embodiments not listed above, which are considered to be within the scope of the present application specification; further, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes shall fall within the scope of protection of the claims of the present application.

Claims

1. An atomizer comprising a housing; characterized in that, The shell is provided with: a liquid storage cavity for storing liquid base; an atomization core for atomizing the liquid base to generate aerosol; a first liquid guide element configured to absorb the liquid base in the liquid storage cavity to deliver the absorbed liquid base to the atomization core; a seal having a first surface in contact with the shell and a second surface opposite to the first surface; the second surface is spaced apart from the first liquid guide element to form a buffer cavity therebetween; wherein the buffer cavity is in communication with the liquid storage cavity and the shell outside, and the buffer cavity is used to temporarily store the liquid base overflowing from the liquid storage cavity and / or the first liquid guide element.

2. The atomizer of claim 1, wherein, The shell is provided with an air inlet and an air outlet, and the shell is provided with an air flow channel extending from the air inlet to the air outlet; the buffer cavity is in communication with the air flow channel, thereby in communication with the shell outside.

3. The atomizer of claim 1, wherein, The distance between the second surface and the first liquid guide element is between 0.3mm and 2mm.

4. The atomizer of claim 1, wherein, The shell is further provided with a support, and at least part of the first liquid guide element is accommodated in the support; wherein the support has an opening on the part of the side wall between the second surface and the first liquid guide element to form the buffer cavity therebetween.

5. The atomizer of claim 4, wherein, The support and the seal have an air exchange channel, and the buffer cavity is in communication with the liquid storage cavity through the air exchange channel.

6. The atomizer of claim 5, wherein, The part of the outer surface of the support in contact with the seal is provided with a groove, and the groove defines at least part of the boundary of the air exchange channel.

7. The atomizer of claim 4, wherein, The support is provided with a ventilation groove, and the buffer cavity is in communication with the shell outside through the ventilation groove.

8. The atomizer of claim 7, wherein, The ventilation groove protrudes from the bottom of the buffer cavity at one end of the buffer cavity.

9. The atomizer of claim 8, wherein, The distance between the ventilation groove at one end of the buffer cavity and the bottom of the buffer cavity is between 0.5mm and 2mm.

10. The atomizer of claim 4, wherein, The shell is further provided with a connecting tube, and at least part of the connecting tube is accommodated in the support; The atomization core is accommodated 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 base absorbed by the first liquid guide element is delivered to the atomization core through the liquid inlet.

11. The atomizer of claim 10, wherein, The distance between the liquid inlet and the bottom of the buffer cavity is between 0.5mm and 2mm; and / or, the distance between the liquid inlet and the top of the buffer cavity is between 0.5mm and 2mm.

12. The atomizer of claim 10, wherein, One end of the first liquid guide element is supported on the support, and the other end of the first liquid guide element is arranged close to the liquid storage cavity and clamped between the connecting tube and the support.

13. The atomizer of claim 10, wherein, The first liquid guide element has a tubular structure, and the first liquid guide element is sleeved on the connecting tube.

14. The atomizer of claim 4, wherein, The support is at least partially accommodated in the seal.

15. The atomizer of claim 4, wherein, The shell comprises a main shell and a bottom cover detachably connected with the main shell, and the support is supported on the bottom cover.

16. The atomizer of claim 15, wherein, The support and the bottom cover are detachably connected.

17. The atomizer of claim 15, wherein, The seal is at least partially clamped between the main shell and the bottom cover.

18. The atomizer of claim 1, wherein, The buffer cavity is arranged around the first liquid guide element.

19. The atomizer of claim 1, wherein, The atomizer core comprises a second liquid guide element for drawing a liquid substrate and a heating element for heating the atomized liquid substrate to generate an aerosol.

20. An electronic atomizing device, characterized by, The power supply assembly is detachably connected with the atomizer.

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