Atomizer and electronic atomization device

Abstract

The utility model provides an atomizer and an electronic atomization device. The atomizer comprises a shell assembly which defines a suction nozzle, a communicating cavity, a first cavity and a second cavity, wherein the first cavity and the second cavity are communicated with each other and are arranged in parallel; the first cavity and the second cavity extend in the height direction of the atomizer. The first cavity and the second cavity are communicated through the communicating cavity; the vertical sectional area of the communicating cavity is gradually reduced in the liquid discharging direction of the atomizer; the atomizing core is arranged in the second cavity and is matched with the second cavity to form a liquid storage cavity; the liquid storage bottle is detachably connected to the side, away from the suction nozzle, of the first cavity. According to the atomizer, the atomizing medium can be prevented from flowing back into the communicating cavity or the first cavity from the second cavity, so that the risk that the atomizing medium is polluted is reduced; meanwhile, in the liquid discharging process, the pressure in the second cavity can be reduced, and the risk that the atomizing medium leaks from the atomizing core is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic atomization, and in particular to an atomizer and an electronic atomization device. Background Art

[0002] At present, electronic atomization devices usually include an atomizer and a liquid storage bottle, wherein the liquid storage bottle is connected to the atomization body and is used to supply liquid to the atomizer. The atomizer is used to atomize the atomizing medium provided by the liquid storage bottle to form an aerosol. However, existing atomizers are prone to the problem of atomizing medium backflow or leakage. Utility Model Content

[0003] The atomizer and electronic atomization device provided in the present application are intended to solve the problem of atomization medium backflow or leakage that is prone to occur in existing atomizers.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an atomizer, which includes a shell assembly, which is surrounded by a suction nozzle, a connecting cavity, and a first cavity and a second cavity arranged in parallel; the first cavity and the second cavity extend along the height direction of the atomizer respectively; and the first cavity and the second cavity are connected through the connecting cavity; the vertical cross-sectional area of ​​the connecting cavity gradually decreases along the downward liquid direction of the atomizer; an atomizing core is arranged in the second cavity; a liquid storage bottle is detachably connected to a side of the first cavity away from the suction nozzle, and the liquid storage bottle and the suction nozzle are not on the same axis.

[0005] In one embodiment of the present application, the connecting cavity has a top surface and a bottom surface opposite to each other along the height direction of the atomizer, and a first side surface and a second side surface connecting the top surface and the bottom surface; the bottom surface is perpendicular to the height direction of the atomizer; the first side surface and / or the second side surface protrudes toward the central axis of the connecting cavity along the thickness direction of the atomizer along the portion of the second cavity body along the extension direction of the connecting cavity.

[0006] In one embodiment of the present application, the connecting cavity has a relative top surface and bottom surface along the height direction of the atomizer; along the extension direction of the connecting cavity, the bottom surface includes a connecting surface and an inclined surface connected in sequence, and along the extension direction of the connecting cavity, the straight-line distance between each position of the connecting surface and the top surface is the same, and the first cavity extends to the inner wall surface of the connecting surface to be connected with the connecting cavity; the inclined surface is inclined from the position connected to the connecting surface toward the top surface of the connecting cavity.

[0007] In one embodiment of the present application, the liquid outlet port of the communication cavity is in communication with the second cavity;

[0008] A diversion groove is formed on the inclined surface of the communication cavity; along the liquid supply direction of the atomizer, the diversion groove extends from the port where the first cavity communicates with the communication cavity to the liquid outlet port or a position close to the liquid outlet port, and the diversion groove is inclined towards the top surface of the communication cavity.

[0009] In an embodiment of the present application, along a direction perpendicular to the height direction of the atomizer, the communication cavity extends from the side wall of the housing assembly to the inner wall surface of the second cavity; the atomizer further includes a third sealing seat that seals the port at one end of the communication cavity facing away from the second cavity;

[0010] The first cavity has a liquid inlet port, and the first cavity communicates with the communication cavity through the liquid inlet port; and along the height direction of the atomizer, the orthographic projection of the third sealing seat on the bottom surface of the communication cavity falls outside the liquid inlet port; and a liquid storage groove is provided on one side surface of the third sealing seat facing the second cavity.

[0011] In an embodiment of the present application, it further includes: a sealing ball, movably connected to the liquid inlet port and configured to be in a first position or a second position; wherein, the sealing ball can be configured to the first position along a first direction under its own gravity to cover the liquid inlet port; or, under its own gravity and / or the pressure of the atomizing medium in the liquid storage bottle, it is configured to the second position along a second direction from the first position to expose the liquid inlet port; the first direction intersects with the second direction.

[0012] In an embodiment of the present application, along the height direction of the atomizer, the orthographic projection of the third sealing seat on the bottom surface of the communication cavity falls outside the moving path of the sealing ball; and the orthographic projection of the sealing ball on the bottom surface of the communication cavity is connected to the orthographic projection of the third sealing seat on the bottom surface of the communication cavity.

[0013] In an embodiment of the present application, a blocking rib is provided in the diversion groove, the blocking rib extends along the extension direction of the diversion groove, and at least when the sealing ball is in the first position, the blocking rib abuts against the sealing ball.

[0014] In an embodiment of the present application, the atomization core is accommodated in the second cavity and is spaced from the inner wall surface of the second cavity to cooperate to form a liquid storage cavity.

[0015] To solve the above technical problems, another technical solution adopted by the present application is: to provide an electronic atomization device, which includes the atomizer involved above; a power supply assembly, detachably connected to the atomizer for supplying power to the atomizer.

[0016] The beneficial effects of the embodiments of the present application are different from the prior art: The atomizer provided by the embodiments of the present application has a vertical cross-sectional area of the communication cavity gradually decreasing along the liquid supply direction of the atomizer; in this way, when the atomization medium flows from the liquid storage bottle to the second cavity, the atomization medium will not directly fill the second cavity completely, but slowly fill it through the communication cavity, reducing the risk of liquid leakage of the atomization medium in the second cavity due to excessive pressure. At the same time, for the communication cavity with such a structure, the liquid outlet port communicating with the second cavity can play a certain role in blocking the backflow of the atomization medium, and the atomization medium is easy to form a liquid film at the liquid outlet port, thereby further reducing the risk of backflow of the atomization medium, and further reducing the risk of the atomization medium being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded view of an electronic atomization device provided by an embodiment of the present application;

[0018] Figure 2 is Figure 1 a cross-sectional view of the atomizer in the A-A direction in

[0019] Figure 3 is Figure 2 a schematic structural view of the atomizer excluding the liquid storage bottle in

[0020] Figure 4 is Figure 2 a schematic structural view of the upper housing in

[0021] Figure 5 is Figure 1 a cross-sectional view of the atomizer shown in the B-B direction in

[0022] Figure 6 is Figure 1 another cross-sectional view of the atomizer in the A-A direction in

[0023] Figure 7 is Figure 6 an exploded view of

[0024] Figure 8 is Figure 1 a cross-sectional view of the electronic atomization device shown in the B-B direction in

[0025] Figure 9 is a schematic position view of the upper housing of the atomizer provided by an embodiment of the present application when placed flat;

[0026] Figure 10 is Figure 9 a position view of the orthographic projection of the liquid outlet port of the communication cavity of

[0027] Figure 11 is Figure 1 a cross-sectional view of the power supply component shown in the A-A direction in

[0028] Figure 12 is Figure 1 a cross-sectional view taken along the A-A direction after the shown electronic atomization device is assembled;

[0029] Figure 13 is Figure 1 another cross-sectional view taken along the A-A direction after the shown electronic atomization device is assembled.

[0030] Description of the Reference Numerals

[0031] 10 - atomizer; 1 - housing assembly; 11 - mouthpiece; 12 - first cavity; 121 - first cavity part; 122 - second cavity part; 123 - liquid inlet port; 13 - second cavity; 14 - upper housing; 141 - first groove; 142 - second groove; 143 - communication cavity; 1431 - first side end face; 1432 - second side end face; 1433 - communication face; 1434 - inclined face; 1435 - diversion groove; 1436 - blocking rib; 144 - liquid outlet port; 15 - bottom cover; 16 - first sealing seat; 17 - second sealing seat; 18 - liquid absorption cotton; 2 - atomization core; 21 - outer tube; 22 - liquid storage cavity; 23 - liquid storage cotton; 24 - liquid guiding cotton; 25 - ventilation pipe; 3 - liquid storage bottle; 4 - third sealing seat; 41 - liquid storage tank; 5 - bottle mouth sealing ring; 9 - sealing ball;

[0032] 20 - power supply assembly; 6 - accommodation cavity; 7 - microphone holder; 71 - air flow hole; 72 - inclined face; 8 - microphone. Detailed Embodiments

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] The terms "first", "second", and "third" in this application are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indication also changes accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0035] Reference to "embodiment" in this context means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0036] The following provides a detailed description of this application in conjunction with the drawings and embodiments.

[0037] Please refer to Figures 1 to 2 , Figure 1 which is an exploded view of an electronic atomization device provided by an embodiment of this application; Figure 2 is Figure 1 a cross-sectional view taken along the A-A direction of the atomizer in [Figure reference]. In this embodiment, an electronic atomization device is provided for atomizing an atomization medium to form an aerosol. Among them, the atomization medium can be a liquid medicine formed by dispersing a certain medicine in a liquid solvent, an oil added with aroma components, or any other liquid suitable for atomization, such as e-liquid. The electronic atomization device can be used in fields such as beauty, medical, and e-cigarettes. The electronic atomization device includes an atomizer 10 and a power supply assembly 20.

[0038] As shown in Figure 2As shown, the atomizer 10 includes a housing assembly 1, an atomization core 2, and a liquid storage bottle 3. The housing assembly 1 encloses and forms a mouthpiece 11, and a first cavity 12 and a second cavity 13 that are interconnected and arranged in parallel. The user can inhale the aerosol through the mouthpiece 11. Alternatively, the mouthpiece 11 can also be a spray port to eject the aerosol to a preset position. The first cavity 12 and the second cavity 13 extend along the height direction Y of the atomizer 10.

[0039] In one embodiment, referring to Figure 3 , Figure 3 is Figure 2 a schematic structural diagram of the atomizer in

[0040] excluding the liquid storage bottle; along the height direction Y of the atomizer 10, the mouthpiece 11 is coaxially connected to the second cavity 13; the first cavity 12 and the second cavity 13 are spaced apart along a direction perpendicular to the height direction Y of the atomizer 10, and one end (i.e., the bottom wall) of the first cavity 12 facing the mouthpiece 11 can be connected to the second cavity 13.

[0040] In one specific embodiment, combining Figure 3 and Figure 4 , Figure 4 is Figure 2 a schematic structural diagram of the upper housing in

[0041] The housing assembly 1 includes an upper housing 14 and a bottom cover 15; the upper housing 14 encloses and forms a mouthpiece 11, a first groove 141, and a second groove 142. The first groove 141 and the second groove 142 extend along the height direction Y of the atomizer 10, and the openings of the first groove 141 and the second groove 142 both face away from the side of the mouthpiece 11. The first groove 141 serves as the first cavity 12. The second groove 142 is located on one side of the mouthpiece 11 along the height direction Y of the atomizer 10 and is connected to the mouthpiece 11. The first groove 141 is arranged in parallel with the second groove 142 along a direction perpendicular to the height direction Y of the atomizer 10. The bottom cover 15 covers the port at one end of the second groove 142 facing away from the mouthpiece 11 and cooperates with the second groove 142 to form the second cavity 13.

[0041] In some embodiments, the housing assembly 1 further includes a first sealing seat 16, a second sealing seat 17, and a liquid absorbing cotton 18. The second sealing seat 17 is arranged on the bottom cover 15, and the surface of the second sealing seat 17 facing away from the bottom cover 15 has an insertion groove, and an air inlet hole is opened on the bottom wall of the insertion groove. A part of the atomization core 2 is embedded in the insertion groove to seal the bottom of the second cavity 13 through the second sealing seat 17 and supply air to the atomization core 2 through the air inlet hole to carry out the atomized aerosol. The first sealing seat 16 is arranged at the connection between the atomization core 2 and the mouthpiece 11 to seal the connection gap between the atomization core 2 and the mouthpiece 11. The liquid absorbing cotton 18 is arranged between the bottom cover 15 and the second sealing seat 17 to absorb the atomization medium leaking from the air inlet hole and reduce the risk of liquid leakage. Among them, the first sealing seat 16 and the second sealing seat 17 can be elastomers such as plastics and silica gels.

[0042] The atomization core 2 is disposed in the second cavity 13 and is used to atomize the atomization medium entering the second cavity 13. In one embodiment, refer to Figure 4 , the atomization core 2 is spaced apart from at least a part of the inner wall surface of the second cavity 13 along its circumferential direction, and a liquid storage cavity 22 is defined and formed; the first cavity 12 is communicated with the liquid storage cavity 22 to supply liquid to the atomization core 2. Specifically, the outer wall surfaces of the side walls of the atomization core 2 are all spaced apart from the inner wall surface of the second cavity 13 to increase the volume of the liquid storage cavity 22. This example is taken in the embodiment of the present application. Of course, in other embodiments, the atomization core 2 may also be attached to the inner wall surface of the second cavity 13, and the liquid outlet port 144 of the communication cavity 143 is directly communicated with the atomization core 2 to supply liquid.

[0043] In a specific embodiment, the ratio of the cross-sectional area of the atomization core 2 to the cross-sectional area of the second cavity 13 is 0.5 - 0.7; for example, the ratio of the two may be 0.5, 0.55, 0.6, 0.65 or 0.7.

[0044] In the above solution, compared with the solution in which the cross-sectional area of the second cavity 13 is much larger than the cross-sectional area of the atomization core 2, the volume of the liquid storage cavity 22 defined by the atomization core 2 and the second cavity 13 can be within a preset range, reducing the risk that due to the large volume of the liquid storage cavity 22, the atomization medium stays in the liquid storage cavity 22 for a long time and is repeatedly heated, resulting in the deterioration of the atomization medium or the generation of toxic substances.

[0045] In a specific embodiment, the atomization core 2 includes an outer tube 21, an inner tube, a liquid storage cotton 23, a liquid guiding cotton 24, a ventilation tube 25 and a heating element. The outer tube 21 has a liquid inlet, the inner tube is sleeved inside the outer tube 21 and is spaced apart from the outer tube 21. The liquid storage cotton 23 is disposed between the outer tube 21 and the inner tube and is used for storing liquid. The atomization medium in the second cavity 13 enters the liquid storage cotton 23 through the liquid inlet. The liquid guiding cotton 24 is disposed inside the inner tube and is used for guiding liquid. The heating element is used to heat and atomize the atomization medium when powered on to form an aerosol. The aerosol flows out to the mouthpiece 11 through the ventilation tube 25.

[0046] The liquid storage bottle 3 is detachably connected to the side of the first cavity 12 facing away from the nozzle 11 for supplying liquid to the second cavity 13, and the liquid storage bottle 3 and the nozzle 11 are not on the same axis; and the atomization medium in the liquid storage bottle 3 can flow restrictively into the second cavity 13. Wherein, by detachably connecting the liquid storage bottle 3 to the side of the first cavity 12 facing away from the nozzle 11 and arranging the mutually connected first cavity 12 and second cavity 13 side by side; thus, when the atomizer 10 does not need liquid supply, the atomizer 10 can be placed upright (i.e., the nozzle 11 is upward) so that more atomization medium is stored in the liquid storage bottle 3; and when liquid supply is needed, the atomizer 10 is inverted (i.e., the nozzle 11 is vertically downward or inclined downward), so that the atomization medium in the liquid storage bottle 3 flows out, passes through the first cavity 12 and flows into the second cavity 13, so as to minimize the number of times the atomization medium is repeatedly heated, and make the aerosol formed by atomization have a better suction taste. In addition, by arranging the mutually connected first cavity 12 and second cavity 13 side by side, connecting the liquid storage bottle 3 to the first cavity 12, and arranging the atomization core 2 in the second cavity 13, in this way, the atomization medium flowing out of the liquid storage bottle 3 will flow through the first cavity 12 and then enter the second cavity 13. Compared with the scheme of directly entering the second cavity 13 from the liquid storage bottle 3, this scheme can buffer the flow rate, hydraulic pressure, etc. of the atomization medium flowing out of the liquid storage bottle 3, weaken the impact of too much atomization medium on the second cavity 13, or reduce the leakage caused by the atomization core 2 not atomizing these atomization media in time due to too much atomization medium stored in the second cavity 13, or the atomization medium being directly sucked into the user's mouth, affecting the suction taste.

[0047] In some embodiments, in combination with Figure 3 , the housing assembly 1 further encloses and forms a communication cavity 143, and the liquid outlet port 144 of the communication cavity 143 extends to the inner wall surface of the second cavity 13 and communicates with the second cavity 13; the bottom wall of the first cavity 12 (i.e., the bottom wall of the first groove body 141) communicates with the communication cavity 143 to communicate with the second cavity 13 through the communication cavity 143. It can be understood that when the liquid storage bottle 3 is connected to the first cavity 12, the bottle mouth of the liquid storage bottle 3 supplies liquid to the second cavity 13 through the communication cavity 143. Hereinafter, the port of the first cavity 12 communicating with the communication cavity 143 is referred to as the liquid inlet port 123.

[0048] In the above solution, when the liquid storage bottle 3 supplies liquid (such as being inverted), on the one hand, most of the atomization medium flowing out of the liquid storage bottle 3 can flow into the communication cavity 143 through the bottom wall of the first cavity 12. Compared with the solution where the side wall of the first cavity 12 is in communication with the communication cavity 143, the risk that part of the atomization medium flowing out of the liquid storage bottle 3 is stored in the first cavity 12 and cannot enter the second cavity 13 is reduced, thereby effectively improving the utilization rate of the atomization medium. On the other hand, the atomization medium flowing out of the liquid storage bottle 3 will flow through the communication cavity 143 and then enter the second cavity 13. In this way, the communication cavity 143 can play a certain buffering role in the flow rate, hydraulic pressure, etc. of the atomization medium flowing out of the liquid storage bottle 3, weakening the impact of excessive atomization medium on the second cavity 13, or reducing the risk of liquid leakage in the second cavity 13 due to excessive storage of atomization medium, resulting in the atomization core 2 not atomizing these atomization media in time, or the atomization medium being directly sucked into the user's mouth, affecting the suction taste.

[0049] In one embodiment, referring to Figure 5 , Figure 5 is Figure 1 the B-B cross-sectional view of the atomizer shown. The vertical cross-sectional area of the communication cavity 143 gradually decreases along the liquid flow direction of the atomizer 10. In this way, when the atomization medium flows from the liquid storage bottle 3 to the second cavity 13, the atomization medium will not directly fill the second cavity 13, but slowly fill it through the communication cavity 143, reducing the risk of liquid leakage in the second cavity 13 due to excessive pressure. At the same time, for the communication cavity 143 with this structure, its liquid outlet port 144 communicating with the second cavity 13 can play a certain blocking role in the reflux of the atomization medium in the second cavity 13 back to the communication cavity 143 and / or the first cavity 12, and the atomization medium is easy to form a liquid film at the liquid outlet port 144, thereby further reducing the risk of atomization medium reflux and further reducing the risk of atomization medium being contaminated.

[0050] Wherein, the vertical cross-sectional area of the communication cavity 143 refers to the area of the cross-section of the communication cavity 143 along the height direction Y of the atomizer 10. The liquid flow direction of the atomizer 10 refers to the flow direction of the atomization medium from the liquid storage bottle 3 to the second cavity 13 when the atomizer 10 supplies liquid, as Figure 2 indicated by the dotted arrow in

[0051] The vertical cross-sectional area of the communication cavity 143 gradually decreasing along the liquid flow direction of the atomizer 10 can be continuously decreasing or with a small gradient. For example, the vertical cross-sectional area of the communication cavity 143 continuously decreases in a manner of gradually increasing at a decreasing rate along the liquid flow direction of the atomizer 10; continuously decreases in a manner of gradually decreasing at a decreasing rate; or continuously decreases at a constant rate.

[0052] In one embodiment, please continue to refer to Figure 5, the communication cavity 143 has a top surface and a bottom surface opposite to each other in the height direction Y of the atomizer 10, and a first side surface and a second side surface connecting the top surface and the bottom surface. The top surface, the bottom surface, the first side surface and the second side surface of the communication cavity 143 enclose a liquid outlet port 144 communicating with the second cavity 13. Among them, the bottom surface of the communication cavity 143 is perpendicular to the height direction Y of the atomizer 10. The part of the first side surface of the communication cavity 143 close to the second cavity 13 along the extending direction X of the communication cavity 143 is the first side end surface 1431; the part of the second side surface of the communication cavity 143 close to the second cavity 13 along the extending direction X of the communication cavity 143 is the second side end surface 1432; the first side end surface 1431 and / or the second side end surface 1432 protrude towards the central axis P of the communication cavity 143 in the thickness direction Z of the atomizer 10.

[0053] In a specific embodiment, both the first side end surface 1431 and the second side end surface 1432 protrude towards the central axis P of the communication cavity 143 in the thickness direction Z of the atomizer 10. The distances between the first side end surface 1431 and the second side end surface 1432 and the central axis P of the communication cavity 143 in the thickness direction Z of the atomizer 10 can be the same; of course, they can also be different.

[0054] Among them, the top surface of the communication cavity 143 can also be perpendicular to the height direction Y of the atomizer 10; of course, it can also be inclined relative to the height direction Y of the atomizer 10; or the top surface of the communication cavity 143 can also be an arc surface or other irregular planes, and the present application does not limit this.

[0055] In another embodiment, see Figures 6 to 8 , Figure 6 is Figure 1 another sectional view of the atomizer in the A-A direction in Figure 7 is Figure 6 the disassembled schematic diagram of Figure 8 is Figure 1 a sectional view of the electronic atomization device shown in Figure 5 in the B-B direction; different from the corresponding embodiment above Figure 6 is that: along the extending direction X of the communication cavity 143, the bottom surface of the communication cavity 143 includes a communicating surface 1433 and an inclined surface 1434 connected in sequence. Among them, along the extending direction X of the communication cavity 143, the linear distances between each position of the communicating surface 1433 and the top surface of the communication cavity 143 are the same, and the inner wall surface of the first cavity 12 extends to the communicating surface 1433 to communicate with the communication cavity 143. As Figure 6 shown, the communicating surface 1433 can be a plane perpendicular to the height direction Y of the atomizer 10. Of course, the communicating surface 1433 can also be a curved surface in the thickness direction Z of the atomizer 10.

[0056] Among them, the cross-section of the communication cavity 143 along the height direction Y of the atomizer 10 can be rectangular or other polygonal structures; in this embodiment, the top surface of the communication cavity 143 refers to the inner surface of the communication cavity 143 closest to the mouthpiece 11; the bottom surface of the communication cavity 143 refers to the inner surface of the communication cavity 143 farthest from the mouthpiece 11. Of course, the cross-section of the communication cavity 143 along the height direction Y of the atomizer 10 can also be an arc-edge structure such as a circle or an ellipse. In this embodiment, the central plane of the communication cavity 143 perpendicular to the height direction Y of the atomizer 10 is used as the dividing surface, and the inner surface on the side of the dividing surface facing the mouthpiece 11 and with a direct distance from the dividing surface along the height direction Y of the atomizer 10 being the first threshold is defined as the top surface; the inner surface on the side of the dividing surface facing away from the mouthpiece 11 and with a direct distance from the dividing surface along the height direction Y of the atomizer 10 being the second threshold is defined as the bottom surface. The first threshold and the second threshold can be the same or different, and both are greater than 0. The central plane of the communication cavity 143 refers to the plane passing through the midline of the communication cavity 143 along the height direction Y of the atomizer 10.

[0057] The inclined surface 1434 inclines from the position connected to the communication surface 1433 towards the top surface of the communication cavity 143. In this way, when the atomizer 10 is inverted for liquid supply, the inclined surface 1434 can guide the atomization medium, so that the atomization medium can directly enter the second cavity 13. Among them, the inclined surface 1434 can extend to the inner wall surface of the second cavity 13. Or, the bottom surface of the communication cavity 143 can further include a plane connected to the side of the inclined surface 1434 facing away from the communication surface 1433, and this plane is perpendicular to the height direction Y of the atomizer 10 and extends to the inner wall surface of the second cavity 13.

[0058] In one embodiment, it can be combined with Figure 8 , a diversion groove 1435 is formed on the inclined surface 1434 of the communication cavity 143; along the liquid supply direction of the atomizer 10, the diversion groove 1435 extends from the port where the first cavity 12 is connected to the communication cavity 143 (i.e., the inner wall surface of the liquid inlet port 123) to the liquid outlet port 144 or a position close to the liquid outlet port 144, and the diversion groove 1435 inclines towards the top surface of the communication cavity 143, that is, towards the direction of the mouthpiece 11. In this way, the atomization medium flowing out of the first cavity 12 can be further guided through the diversion groove 1435, so that the atomization medium can smoothly enter the second cavity 13.

[0059] Among them, the ratio of the cross-sectional area of the diversion groove 1435 to the area of the inclined surface 1434 can be 0.5 - 0.8; such as 0.5, 0.55, 0.6, 0.65, 0.7, 0.75 or 0.8.

[0060] In a specific embodiment, such as Figure 4 , the communication cavity 143 is specifically formed on the upper housing 14.

[0061] In one embodiment, referring to Figure 6 and Figure 7 , along a direction perpendicular to the height direction Y of the atomizer 10, the communication cavity 143 extends from the side wall of the upper housing 14 of the housing assembly 1 to the inner wall surface of the second cavity 13. In this embodiment, as Figure 3 shown, the atomizer 10 further includes a third seal seat 4. The third seal seat 4 plugs the port at one end of the communication cavity 143 facing away from the second cavity 13 to prevent liquid leakage. Along the height direction Y of the atomizer 10, the orthographic projection of the third seal seat 4 on the bottom surface of the communication cavity 143 falls outside the liquid inlet port 123; so as to avoid the third seal seat 4 blocking the liquid outlet of the first cavity 12.

[0062] In one embodiment, one side surface of the third seal seat 4 facing the second cavity 13 has a liquid storage groove 41. The liquid storage groove 41 communicates with the communication cavity 143. In this way, the buffer space between the first cavity 12 and the second cavity 13 can be increased to reduce the risk of liquid leakage.

[0063] In one embodiment, referring to Figures 6 to 8 , the atomizer 10 further includes a sealing ball 9. The sealing ball 9 is movably connected to the liquid inlet port 123 and is configured to be in a first position or a second position; wherein, the sealing ball 9 can be configured to the first position along a first direction under the action of its own gravity to cover the liquid inlet port 123, thereby sealing the liquid inlet port 123 to prevent the atomization medium in the communication cavity 143 from flowing back into the liquid storage bottle 3 and polluting the atomization medium in the liquid storage bottle 3. Or, the sealing ball 9 can be configured to the second position from the first position along a second direction under the action of its own gravity and / or the pressure of the atomization medium in the liquid storage bottle 3 to expose the liquid inlet port 123, so that the atomization medium in the liquid storage bottle 3 can flow into the communication cavity 143 and enter the second cavity 13 to realize the liquid supply function. Wherein, the first direction intersects with the second direction.

[0064] Specifically, the first direction is opposite to the second direction. The first direction is the direction in which the nozzle 11 of the atomizer 10 faces upward (the atomizer 10 is placed upright), and is the direction indicated by the arrow corresponding to the Y direction in the drawing; the second direction is the direction in which the nozzle 11 of the atomizer 10 faces downward (the atomizer 10 is inverted). Of course, the included angle between the first direction and the second direction can also be greater than 90° and less than 180°; such as 120°, 130°, 140°, 150°, 160° or 170°, etc.

[0065] Thus, when the atomizer 10 is placed upright, i.e., the nozzle 11 is facing upward, the liquid inlet port 123 of the first cavity 12 can be sealed by the sealing ball 9 to prevent the atomization medium in the communication cavity 143 from flowing back to the liquid storage bottle 3 through the first cavity 12, thereby contaminating the atomization medium in the liquid storage bottle 3 or causing a liquid leakage phenomenon in the first cavity 12. Among them, when the atomizer 10 is inverted or tilted and liquid supply is required, the sealing ball 9 can be separated from the liquid inlet port 123 under its own gravity and / or the impact of the atomization medium in the liquid storage bottle 3, for example, moving in the direction away from the liquid inlet port 123 along the height direction Y of the atomizer 10, so that the atomization medium in the liquid storage bottle 3 can enter the communication cavity 143 through the liquid inlet port 123.

[0066] Among them, the material of the sealing ball 9 can be an elastomer such as silica gel or rubber, or a rigid body with anti-corrosion performance, as long as the sealing ball 9 can seal the liquid inlet port 123.

[0067] In one embodiment, in combination with Figure 7 and Figure 8 , along the height direction Y of the atomizer 10, the orthographic projection of the third sealing seat 4 on the bottom surface of the communication cavity 143 falls outside the moving path of the sealing ball 9; to avoid the third sealing seat 4 blocking the moving process of the sealing ball 9. Further, the orthographic projection of the sealing ball 9 on the bottom surface of the communication cavity 143 is connected to the orthographic projection of the third sealing seat 4 on the bottom surface of the communication cavity 143.

[0068] Specifically, along the height direction Y of the atomizer 10, the liquid storage tank 41 has opposite top and bottom walls. Along the height direction Y of the atomizer 10, the orthographic projection of the sealing ball 9 on the bottom surface of the communication cavity 143 is at least connected to the orthographic projection of the top wall of the liquid storage tank 41 on the bottom surface of the communication cavity 143.

[0069] It should be noted that the connection of the two orthographic projections here means that part of the two orthographic projections is in contact but there is no overlap or coincidence. In this way, the third sealing seat 4 can prevent the sealing ball 9 from sliding in the extending direction X of the communication cavity 143 in the direction away from the second cavity 13, reducing the influence of the sliding of the sealing ball 9 at the first position on the sealing effect of the sealing ball 9 on the liquid inlet port 123; and the third sealing seat 4 can limit the moving path of the sealing ball 9, so that the sealing ball 9 moves as much as possible along the height direction Y of the atomizer 10. Thus, when the atomizer 10 is placed upright, it can be ensured that the atomizer 10 returns to the liquid inlet port 123 of the first cavity 12 under the action of gravity to seal the liquid inlet port 123.

[0070] In one embodiment, in combination with Figures 6 - 8, a blocking rib 1436 is provided in the diversion groove 1435. The blocking rib 1436 extends along the extending direction of the diversion groove 1435, and at least when the sealing ball 9 is in the first position, the blocking rib 1436 abuts against the sealing ball 9. In this way, the blocking rib 1436 can prevent the sealing ball 9 from sliding, reducing the influence of the sliding of the sealing ball 9 on the sealing effect of the liquid inlet port 123 by the sealing ball 9. At the same time, it can cooperate with the third sealing seat 4 to limit the moving path of the sealing ball 9, so that the sealing ball 9 moves as much as possible along the height direction Y of the atomizer 10. Thus, when the atomizer 10 is placed upright, it can ensure that the atomizer 10 returns to the liquid inlet port 123 of the first cavity 12 under the action of gravity to seal the liquid inlet port 123, reducing the probability that the sealing ball 9 falls to other positions and cannot cover the liquid inlet port 123 or only covers a part of the liquid inlet port 123.

[0071] In a specific embodiment, during the process of the sealing ball 9 being configured back and forth between the first position and the second position, the sealing ball 9 always abuts against the blocking rib 1436 to prevent the sealing ball 9 from rolling randomly and affecting the sealing effect.

[0072] In some embodiments, as Figure 3 shown, along the height direction Y of the atomizer 10, the depth H1 of the second cavity 13 is greater than the depth H2 of the first cavity 12. In this way, when the atomizer 10 is inverted and the liquid storage bottle 3 supplies liquid, it can ensure that there is always a part of the atomization medium in the second cavity 13, thereby reducing the risk of dry burning of the atomization core 2.

[0073] In one embodiment, referring to Figure 9 and Figure 10 , Figure 9 is a schematic diagram of the position of the upper shell when the atomizer provided in an embodiment of the present application is placed flat; Figure 10 is Figure 9 a schematic diagram of the position of the orthographic projection of the liquid outlet port of the communication cavity on the cross-section and the cross-section. The maximum cross-section of the second cavity 13 along the thickness direction Z of the atomizer 10 is the cross-section N; the orthographic projection of the liquid outlet port 144 of the communication cavity 143 on the cross-section N is located within the cross-section N, and along the thickness direction Z of the atomizer 10, the orthographic projection of the liquid outlet port 144 of the communication cavity 143 on the cross-section N is spaced from both sides of the cross-section N. That is, along the thickness direction Z of the atomizer 10, the orthographic projection of the liquid outlet port 144 of the communication cavity 143 on the cross-section N has a first distance L1 from the first side of the cross-section N; the orthographic projection of the liquid outlet port 144 of the communication cavity 143 on the cross-section N has a second distance L2 from the second side of the cross-section N; where L1 and L2 may be equal or not equal.

[0074] The thickness direction Z of the atomizer 10 is perpendicular to the height direction Y of the atomizer 10 and the juxtaposed direction of the first cavity 12 and the second cavity 13 respectively.

[0075] In the above solution, when the atomizer 10 is placed horizontally, that is, when the height direction Y of the atomizer 10 is parallel or nearly parallel to the bearing tabletop, the atomization medium in the second cavity 13 will not all flow back into the communication cavity 143, that is, a part of the atomization medium will always remain in the second cavity 13 to prevent dry burning.

[0076] In some embodiments, referring to Figure 3 , the first cavity 12 includes a first cavity portion 121 and a second cavity portion 122 that communicate with each other. One end of the first cavity portion 121 facing away from the second cavity portion 122 communicates with the communication cavity 143; the bottle mouth of the liquid storage bottle 3 passes through the second cavity portion 122 from one end of the second cavity portion 122 facing away from the first cavity portion 121 and is embedded in the first cavity portion 121 and connected to the first cavity portion 121; wherein, along the height direction Y of the atomizer 10, the orthographic projection of the liquid storage bottle 3 on the housing assembly 1 is located in the second cavity portion 122; that is, the cross-sectional area of the liquid storage bottle 3 is smaller than the cross-sectional area of the second cavity portion 122. In this way, during the installation of the liquid storage bottle 3, the alignment of the liquid storage bottle 3 and the first cavity portion 121 can be limited by the second cavity portion 122, so as to facilitate the quick insertion of the liquid storage bottle 3 into the first cavity portion 121; at the same time, after the liquid storage bottle 3 and the first cavity portion 121 are assembled, the liquid storage bottle 3 can be positioned by the side wall of the second cavity portion 122 to reduce the risk of loosening of the connection between the liquid storage bottle 3 and the first cavity portion 121 due to the back-and-forth shaking of the liquid storage bottle 3, resulting in liquid leakage.

[0077] In some embodiments, the liquid storage bottle 3 and the first cavity 12 may be threadedly connected. In a specific embodiment, an internal thread is provided in the first cavity portion 121, and an external thread is provided on the bottle mouth of the liquid storage bottle 3, and the internal thread and the external thread are screwed together to achieve the detachable connection between the liquid storage bottle 3 and the first cavity 12. Of course, in other embodiments, the liquid storage bottle 3 and the first cavity 12 may also be connected by interference fit or plug-in connection.

[0078] In some embodiments, please refer back to Figure 2 , a sealing groove is further provided on the outer side surface of the bottle mouth of the liquid storage bottle 3; the sealing groove is arranged in a circle along the circumferential direction of the bottle mouth. The atomizer 10 further includes a bottle mouth sealing ring 5, and the bottle mouth sealing ring 5 is embedded in the sealing ring for sealing the gap between the inner wall surface of the first cavity portion 121 and the bottle mouth.

[0079] In some embodiments, referring to Figures 11 to 13 , Figure 11 is Figure 1 the A-A cross-sectional view of the power supply assembly shown; Figure 12 is Figure 1 the A-A cross-sectional view of the assembled electronic atomization device shown;

[0080] Figure 13 is Figure 1The power supply assembly 20 is detachably connected to the atomizer 10 for supplying power to the atomizer 10. Specifically, the power supply assembly 20 and the atomizer 10 can be detachably connected by magnetic attraction or snap connection.

[0081] In one embodiment, part of the liquid storage bottle 3 of the atomizer 10 may protrude from the shell assembly 1. The power supply assembly 20 has a receiving chamber 6 with an opening at one end, and the opening of the receiving chamber 6 faces the atomizer 10. After the liquid storage bottle 3 is connected to the first cavity 12, the part of the liquid storage bottle 3 protruding from the shell assembly 1 is received in the receiving chamber 6 through the opening of the receiving chamber 6. In this way, after the atomizer 10 is connected to the power supply assembly 20, the liquid storage bottle 3 is hidden inside the electronic atomization device, which prevents the liquid storage bottle 3 from being pierced by sharp objects and causing leakage during transportation or use, and also prevents children from being curious about the liquid in the liquid storage bottle 3 and using it by mistake.

[0082] Of course, in other embodiments, the liquid storage bottle 3 of the atomizer 10 may not protrude from the housing assembly 1 .

[0083] In one embodiment, the power supply assembly 20 further includes a microphone base 7 and a microphone 8; the microphone base 7 is provided with an airflow hole 71; the microphone 8 is provided on the microphone base 7 and communicated with the airflow hole 71, and is used to sense the airflow entering from the airflow hole 71. The end surface of the air inlet end of the airflow hole 71 is an inclined surface 72. In this way, the risk of the atomized medium adhering to the inclined surface 72 and blocking the airflow hole 71, resulting in the failure of the microphone 8 to start, can be reduced.

[0084] Specifically, the microphone base 7 has a protrusion on one side facing the atomizer 10, and the protrusion has a through hole as an air flow hole 71. The microphone 8 is arranged on the side of the microphone base 7 away from the atomizer 10. The end surface of the protrusion away from the microphone 8 is an inclined surface 72.

[0085] Of course, in a specific embodiment, the power supply assembly 20 further includes structures such as a housing and a battery, etc. These structures are similar to the related structures of the existing power supply assembly 20 .

[0086] The atomizer 10 provided by the embodiment of the present application detachably connects the liquid storage bottle 3 to the side of the first cavity 12 away from the mouthpiece, and arranges the mutually connected first cavity 12 and second cavity 13 side by side; in this way, when the atomizer 10 does not need to supply liquid, the atomizer 10 can be placed upright so that more atomization medium is stored in the liquid storage bottle 3; when liquid supply is required, the atomizer 10 is inverted, so that the atomization medium in the liquid storage bottle 3 flows out, passes through the first cavity 12 and flows into the second cavity 13, so as to minimize the number of times the atomization medium is repeatedly heated, and the aerosol formed by atomization maintains a good suction taste. In addition, by arranging the mutually connected first cavity 12 and second cavity 13 side by side, connecting the liquid storage bottle 3 to the first cavity 12, and arranging the atomization core 2 in the second cavity 13, in this way, the atomization medium flowing out of the liquid storage bottle 3 will flow through the first cavity 12 and then enter the second cavity 13. Compared with the scheme of directly entering the second cavity 13 from the liquid storage bottle 3, this scheme can buffer the flow rate, hydraulic pressure, etc. of the atomization medium flowing out of the liquid storage bottle 3, weaken the impact of too much atomization medium on the second cavity 13, or reduce the leakage of the atomization medium caused by the atomization core 2 not atomizing these atomization media in time due to too much atomization medium stored in the second cavity 13, or the atomization medium being directly sucked into the user's mouth, affecting the suction taste. In addition, by making the vertical cross-sectional area of the communication cavity 143 gradually decrease along the liquid-down direction of the atomizer 10; in this way, when the atomization medium flows from the liquid storage bottle 3 to the second cavity 13, the atomization medium will not directly fill the second cavity 13, but slowly fill it through the communication cavity 143, reducing the risk of leakage of the atomization medium in the second cavity 13 due to excessive pressure. At the same time, for the communication cavity 143 with this structure, the liquid outlet port 144 communicating with the second cavity 13 can play a certain role in blocking the backflow of the atomization medium, and the atomization medium is easy to form a liquid film at the liquid outlet port 144, thereby further reducing the risk of backflow of the atomization medium, and further reducing the risk of the atomization medium being contaminated.

[0087] The above are only the implementation manners of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. An atomizer, characterized in that: include: A shell assembly is provided to enclose a suction nozzle, a connecting cavity, and a first cavity and a second cavity arranged in parallel; the first cavity and the second cavity extend along the height direction of the atomizer respectively; and the first cavity and the second cavity are connected through the connecting cavity; the vertical cross-sectional area of ​​the connecting cavity gradually decreases along the downward liquid direction of the atomizer; An atomizing core is disposed in the second cavity; The liquid storage bottle is detachably connected to a side of the first cavity away from the suction nozzle, and the liquid storage bottle and the suction nozzle are not on the same axis.

2. The atomizer according to claim 1, characterized in that The connecting cavity has a top surface and a bottom surface opposite to each other along the height direction of the atomizer, and a first side surface and a second side surface connecting the top surface and the bottom surface; the bottom surface is perpendicular to the height direction of the atomizer; a portion of the first side surface and / or the second side surface close to the second cavity along the extension direction of the connecting cavity protrudes toward the central axis of the connecting cavity along the thickness direction of the atomizer.

3. The atomizer according to claim 1, characterized in that The connecting cavity has a relative top surface and bottom surface along the height direction of the atomizer; along the extension direction of the connecting cavity, the bottom surface includes a connecting surface and an inclined surface connected in sequence, and along the extension direction of the connecting cavity, the straight-line distance between each position of the connecting surface and the top surface is the same, and the first cavity extends to the inner wall surface of the connecting surface to be connected with the connecting cavity; the inclined surface is inclined from the position connected to the connecting surface toward the top surface of the connecting cavity.

4. The atomizer according to claim 3, characterized in that The liquid outlet port of the communication cavity is in communication with the second cavity; A guide groove is provided on the inclined surface of the connecting cavity; along the downward liquid direction of the atomizer, the guide groove extends from the port connecting the first cavity and the connecting cavity to the liquid outlet port or a position close to the liquid outlet port, and the guide groove is inclined toward the top surface of the connecting cavity.

5. The atomizer according to claim 4, characterized in that Along a direction perpendicular to the height direction of the atomizer, the communication cavity extends from the side wall of the housing assembly to the inner wall surface of the second cavity; the atomizer further comprises a third sealing seat, the third sealing seat blocks a port of the communication cavity at one end away from the second cavity; The first cavity has a liquid inlet port, and the first cavity is connected with the connecting cavity through the liquid inlet port; and along the height direction of the atomizer, the orthographic projection of the third sealing seat on the bottom surface of the connecting cavity falls outside the liquid inlet port; and the third sealing seat has a liquid storage tank on one side surface facing the second cavity.

6. The atomizer according to claim 5, characterized in that Also includes: A sealing ball is movably connected to the liquid inlet port so as to be configured to a first position or a second position; wherein the sealing ball can be configured to the first position along a first direction under the action of its own gravity so as to cover the liquid inlet port; or, under the action of its own gravity and / or the pressure of the atomized medium in the liquid storage bottle, can be configured from the first position to the second position along a second direction so as to expose the liquid inlet port; the first direction intersects with the second direction.

7. The atomizer according to claim 6, characterized in that Along the height direction of the atomizer, the orthographic projection of the third sealing seat on the bottom surface of the connecting cavity falls outside the moving path of the sealing ball; and the orthographic projection of the sealing ball on the bottom surface of the connecting cavity is connected to the orthographic projection of the third sealing seat on the bottom surface of the connecting cavity.

8. The atomizer according to claim 6, characterized in that A blocking rib is arranged in the guide groove, and the blocking rib extends along the extension direction of the guide groove. At least when the sealing ball is in the first position, the blocking rib abuts against the sealing ball.

9. The atomizer according to claim 6, characterized in that The atomizing core is accommodated in the second cavity and is spaced apart from the inner wall surface of the second cavity to cooperate to form a liquid storage cavity.

10. An electronic atomization device, characterized in that: include: The atomizer according to any one of claims 1 to 9; A power supply assembly is detachably connected to the atomizer and is used to supply power to the atomizer.

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