Patent Application
20250127231
Priority is claimed to Chinese Patent Application No. 202322875728.6, filed on Oct. 24, 2023, the entire disclosure of which is hereby incorporated by reference herein.
The present application relates to the field of atomization technologies, and more specifically, to an atomizer and an electronic atomization apparatus.
An electronic atomization apparatus generally includes a liquid storage cavity, an atomization cavity, and an atomization core, where the liquid storage cavity is configured to store a liquid medium. In an existing electronic atomization apparatus, an atomization core is disposed at least partially in an atomization cavity, and two ends of the atomization core are in communication with a liquid storage cavity. A liquid medium is supplied to the middle from both ends of the atomization core. During an inhalation process, the speeds of consuming the liquid medium on both sides of the atomization core are different, causing the phenomenon that there is a relatively large quantity of liquid mediums on one side of the atomization core and a relatively small quantity of liquid mediums on the other side of the atomization core. For a liquid medium with a high viscosity, due to a low fluidity of the liquid medium, when the liquid medium in the liquid storage cavity is nearly exhausted, unbalanced liquid supply at both ends of the atomization core tends to occur, resulting in dry heating. In addition, some liquid mediums at the bottom of the liquid storage cavity are difficult to flow to both ends of the atomization core, resulting in waste.
In an embodiment, the present invention provides an atomizer, comprising: a liquid storage housing, a liquid storage cavity being formed in the liquid storage housing; a first atomization base disposed at least partially in the liquid storage housing; a second atomization base disposed in the liquid storage housing, an atomization cavity being formed between the second atomization base and the first atomization base; and an atomization core at least partially disposed in the atomization cavity, wherein a cavity bottom surface of the liquid storage cavity comprises at least one liquid guiding surface extending axially along the atomization core, and wherein the at least one liquid guiding surface has a structure with a high middle and two low ends.
Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:
In an embodiment, the present invention provides an improved atomizer and an electronic atomization apparatus having the atomizer for the foregoing defects in the related art.
Technical solutions adopted by the present application to resolve the technical problem thereof are as follows. An atomizer is constructed, including:
In some embodiments, the liquid guiding surface is a circular arc surface with a high middle and two low ends. In some embodiments, the liquid guiding surface includes two planes arranged in inverted V-shape.
In some embodiments, the at least one liquid guiding surface includes two liquid guiding surfaces respectively located on two radial sides of the atomization core.
In some embodiments, the highest position of the at least one liquid guiding surface is not higher than the highest position of the atomization core.
In some embodiments, the width of each liquid guiding surface is greater than or equal to 0.5 mm.
In some embodiments, the second atomization base includes a body portion and at least one liquid guiding portion protruding outward from the outer wall surface of the body portion, and the at least one liquid guiding surface is formed on the upper surface of the at least one liquid guiding portion.
In some embodiments, the outer wall surface of the at least one liquid guiding portion is hermetically bonded to the inner wall surface of the liquid storage housing.
In some embodiments, two ends of the atomization core are in communication with the liquid storage cavity.
The present application further provides an electronic atomization apparatus, including the foregoing atomizer and a control circuit electrically connected to the atomizer.
Implementing the present application has at least the following beneficial effects: The liquid guiding surface has a structure with a high middle and two low ends, so that the liquid medium can flow to both ends of the atomization core through the liquid guiding surface under gravity, so as to supply liquid to both ends of the atomization core, thereby avoiding dry heating and improving utilization of the liquid medium.
To have a clearer understanding of the technical features, objectives, and effects of the present application, specific implementations of the present application are described in detail with reference to the accompanying drawings. In the following description, many specific details are described for thorough understanding of the present application. However, the present application can be implemented in many other manners different from those described herein. A person skilled in the art may make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that orientation or position relationships indicated by the terms such as “longitudinal”, “transversal”, “above”, “below”, “top”, “bottom”, “inner” and “outer” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description of the present application, rather than indicating or implying that the mentioned apparatus or element needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting the present application.
In addition, the terms “first” and “second” are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of the number of indicated technical features. Therefore, a feature defined by “first” or “second” may explicitly indicate or implicitly include at least one of such features. In the descriptions of the present application, unless explicitly specified, “multiple” means at least two, for example, two or three.
In the present application, unless otherwise explicitly specified or defined, the terms such as “install”, “connect”, “connection”, and “fix” should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediate medium, or internal communication between two elements or an interaction relationship between two elements, unless otherwise specified explicitly. A person of ordinary skill in the art can understand specific meanings of the terms in the present application according to specific situations.
In the present application, unless otherwise explicitly specified or defined, the first feature being located “above” or “below” the second feature may be the first feature being in a direct contact with the second feature, or the first feature being in an indirect contact with the second feature through an intermediate medium. In addition, that the first feature is “above” the second feature may indicate that the first feature is directly above or obliquely above the second feature, or may merely indicate that the horizontal position of the first feature is higher than that of the second feature. That the first feature is “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or may merely indicate that the horizontal position of the first feature is lower than that of the second feature.
In some embodiments, the electronic atomization apparatus 100 further includes a shell 10, a battery 30, and a circuit board 40. The shell 10 is configured to receive the atomizer 20, the battery 30, and the circuit board 40, and an air inlet 110 and an air inhalation port 120 that are respectively in communication with the atomization cavity 250 are disposed thereon. When inhalation is performed on the air inhalation port 120, external air enters through the air inlet 110, flows through the atomization cavity 250, and leads the aerosol generated after atomization by the atomization core 26 out to the air inhalation port 120. The circuit board 40 is electrically connected to the battery 30 and the atomizer 20, and a control chip and a related control circuit are disposed thereon, so as to control on and off of the battery 30 to the atomizer 20, and may be further configured to control power provided by the battery 30 to the atomizer 20.
In some embodiments, the housing 10 may be generally in the form of a flat column, which may include a shell 11 and a suction nozzle 12 disposed axially above the shell 11. Herein, “flat” means that the shell 10 has a cross-sectional shape whose length size is greater than the width size. For example, the cross-sectional shape of the shell 10 may be an ellipse, a runway, or a rectangle. Certainly, in other embodiments, the shell 10 is not limited to being in the flat column shape, and may alternatively be in another shape such as a cylindrical shape.
The air inhalation port 120 is formed on the suction nozzle 12 and may be coaxially disposed with the suction nozzle 12, but is not limited to being coaxially disposed. The air inlet 110 may be formed on the side wall of the shell 11, and there may be one or more air inlets. Certainly, in other embodiments, the air inlet 110 may alternatively be formed on the suction nozzle 12, or may be formed by a fit clearance between the suction nozzle 12 and the shell 11.
As shown in
The liquid storage cavity 210 is formed in the liquid storage housing 21. The scaling cover 23 is disposed at the upper end of the liquid storage housing 21, so as to hermetically cover the upper end opening of the liquid storage cavity 210. In some embodiments, the sealing cover 23 may be made of an elastic material such as silicone, and the sealing cover 23 is at least partially embedded in the upper end opening of the liquid storage housing 21, so that a good sealing effect can be provided for the liquid storage cavity 210. Certainly, in other embodiments, the sealing cover 23 may alternatively be made of another material such as plastic. In addition, the scaling cover 23 may alternatively be integrally formed with the liquid storage housing 21 in an injection molding manner or the like.
The air outlet tube 22 is disposed in the liquid storage housing 21 in the longitudinal direction. An air outlet channel 220 is defined on the inner wall surface of the air outlet tube 22, and the liquid storage cavity 210 is defined between the outer wall surface of the air outlet tube 22 and the inner wall surface of the liquid storage housing 21. In some embodiments, the central axis of the air outlet tube 22 may be parallel to or overlapped with the central axis of the liquid storage housing 21. Certainly, in other embodiments, the central axis of the air outlet tube 22 may alternatively be disposed at an angle with the central axis of the liquid storage housing 21.
In some embodiments, the air outlet tube 22 may be integrally formed with the liquid storage housing 21 in a manner such as injection molding. Specifically, in this embodiment, the outer wall surfaces on the two sides of the air outlet tube 22 in the transversal direction Y are respectively integrated with the inner wall surfaces on the two sides of the liquid storage housing 21 in the transversal direction Y. The outer wall surfaces on the two sides of the air outlet tube 22 in the transversal direction X are disposed at intervals from the inner wall surfaces on the two sides of the liquid storage housing 21 in the transversal direction X, so as to form a liquid flowing space for the liquid medium to enter the atomization core 26. Certainly, in other embodiments, the air outlet tube 22 and the liquid storage housing 21 may be separately molded before being assembled.
The atomization core 26 is disposed in the liquid storage housing 21 in the transversal direction X, that is, the axial direction of the atomization core 26 is parallel to the length direction of the liquid storage housing 21. Two axial ends of the atomization core 26 are in communication with the liquid storage cavity 210. The atomization core 26 may include a liquid guiding portion 261 and a heating portion 262 in contact with the liquid guiding portion 261. The liquid guiding portion 261 is at least partially disposed in the atomization cavity 250 and communicates with the liquid storage cavity 210, and is configured to absorb the liquid medium from the liquid storage cavity 210. The heating portion 262 is located in the atomization cavity 250 and may be in contact with the outer wall surface of the liquid guiding portion 261, and is configured to heat and atomize the liquid medium on the liquid guiding portion 261 after being energized. In some embodiments, the heating portion 262 may be a metal heating wire wound on the liquid guiding portion 261. Further, the atomization core 26 further includes two electrode leads 263 respectively connected to two ends of the heating portion 262, and the heating portion 262 is connected to the battery 30 by using the two electrode leads 263.
The liquid guiding portion 261 is tubular, and a run-through liquid guiding channel 2610 is formed therein. The liquid guiding channel 2610 may be coaxially disposed with the liquid guiding portion 261, but is not limited to being coaxially disposed. Both axial ends of the liquid guiding channel 2610 are in communication with the liquid storage cavity 210, so that the liquid medium in the liquid storage cavity 210 can enter the liquid guiding channel 2610 through both ends of the liquid guiding portion 261, and then be conducted by using the liquid guiding portion 261 to the heating portion 262 for heating.
Certainly, in other embodiments, the liquid guiding channel 2610 may alternatively have only one end in communication with the liquid storage cavity 210. In addition, a part of the liquid medium in the liquid storage cavity 210 may not be guided to the liquid guiding portion 261 through the liquid guiding channel 2610, but may be sucked directly by protruding into the liquid storage cavity 210 or through the part of the liquid guiding portion 261 communicating with the liquid storage cavity 210.
In some embodiments, the liquid guiding portion 261 may include a support element 2611 and a liquid guiding layer 2612 sleeved on the support element 2611. The support element 2611 is tubular, for example, circular tubular, and the liquid guiding channel 2610 may run through two ends of the support element 2611 in the axial direction. At least one liquid guiding hole 2615 is disposed on the tube wall of the support element 2611, and the liquid medium in the liquid guiding channel 2610 may pass through the liquid guiding hole 2615 and flow to the liquid guiding layer 2612. The shape of the liquid guiding hole 2615 is not limited herein, including but not limited to a circular hole, an oval hole, a strip hole, or a square hole.
In this embodiment, there are multiple liquid guiding holes 2615, each liquid guiding hole 2615 is a strip hole extending along the axial direction of the support element 2611, and the multiple liquid guiding holes 2615 are distributed uniformly at intervals along the circumferential direction of the support element 2611, so that it can be ensured that the support element 2611 has a sufficient liquid supply area and liquid supply is uniform. Certainly, in other embodiments, the extension direction of the strip hole may alternatively be inclined at an angle with the axial direction of the support element 2611. In some other embodiments, the multiple liquid guiding holes 2615 may alternatively be distributed uniformly in a lattice-like manner at intervals in the axial and circumferential directions of the support element 2611.
The support element 2611 has a certain mechanical strength to provide a certain support strength for the liquid guiding layer 2612 and the heating portion 262. In some embodiments, the support element 2611 may be made of a metal material, such as stainless steel, aluminum alloy, or brass alloy. The metal material has advantages such as high temperature resistance, pollution-free, and odor-free. In addition, with the metal material, the size precision and error can be better controlled in the manufacturing process, so as to control the size of the support element 2611 in the manufacturing process, so that processing precision of the support element 2611 is higher, and the support element 2611 can be made very thin. In addition, the metal material itself has a certain thermal conductivity, so that atomization efficiency of the atomization core 26 can be improved. Certainly, in other embodiments, the support element 2611 may alternatively be made of glass, ceramic, hard plastic, and other materials.
In some embodiments, the liquid guiding layer 2612 may include a heat conducting layer 2613 and an isolation layer 2614. The isolation layer 2614 may be sleeved outside the heat conducting layer 2613 and in contact with the heating portion 262, and is configured to isolate the heat conducting layer 2613 from the heating portion 262. The liquid medium in the liquid guiding channel 2610 may be guided to the heating portion 262 successively through the liquid guiding hole 2615, the heat conducting layer 2613, and the isolation layer 2614. After being energized for heating, the heating portion 262 heats and atomizes the liquid medium to generate an aerosol. The heat conducting layer 2613 has a relatively high heat conductivity coefficient, and the isolation layer 2614 may transfer some heat generated by the heating portion 262 to the heat conducting layer 2613. The heat conducting layer 2613 may transfer the heat more quickly to a nearby liquid medium, and the liquid medium near the heat conducting layer 2613 decreases viscosity after being heated, thereby improving fluidity of the liquid medium near the heat conducting layer 2613, improving the liquid guiding effect and air exchange of the atomization core 26.
In some embodiments, the heat conducting layer 2613 may be made of one or more metal materials such as stainless steel, nickel, nickel alloy, aluminum, aluminum alloy, copper, copper alloy, or the like. The metal material has better heat conductivity, and can better control the size precision and processing error during the processing process. In some embodiments, the heat conducting layer 2613 is a metal mesh layer, and the liquid medium is conducted by using a porous structure of the metal mesh layer. It may be understood that, when the structural strength of the heat conducting layer 2613 is sufficient, the atomization core 26 may not include the support element 2611.
Certainly, in other embodiments, the heat conducting layer 2613 may alternatively be made of a non-metal material with a relatively good heat conductivity coefficient.
The isolation layer 2614 may be a cotton layer, and a specific material of the cotton layer is not limited. For example, the material may be natural organic cotton, or may be organic synthetic polymer porous foam cotton. The cotton layer can stably store a part of the liquid medium, and quickly conduct the liquid medium to the heating portion 262. In addition, when the heat conducting layer 2613 is of a metal material, the isolation layer 2614 may further insulate the heat conducting layer 2613 from the heating portion 262, so as to prevent the heating portion 262 from forming an electrical connection to the heat conducting layer 2613, thereby improving safety performance of the electronic atomization apparatus 100.
It may be understood that in other embodiments, the liquid guiding layer 2612 is not limited to the foregoing specific structure. For example, in some embodiments, a quantity of layers of each of the heat conducting layer 2613 and the isolation layer 2614 is multiple, and each heat conducting layer 2613 and each isolation layer 2614 may be alternately disposed one by one, or multiple isolation layers 2614 may be disposed between every two adjacent heat conducting layers 2613, or multiple heat conducting layers 2613 may be disposed between every two adjacent isolation layers 2614. In some other embodiments, the quantity of layers of the heat conducting layer 2613 may be one, and the quantity of layers of the isolation layer 2614 is multiple. Alternatively, the quantity of layers of the heat conducting layer 2613 may be multiple, and the quantity of layers of the isolation layer 2614 is one. In still some other embodiments, the heat conducting layer 2613 and the isolation layer 2614 may be woven together to form a composite liquid guiding layer, for example, metal and cotton are woven together to form a composite liquid guiding layer. Certainly, the liquid guiding layer 2612 may alternatively include only the cotton layer but not the heat conducting layer 2613.
The first atomization base 27 and the second atomization base 25 are disposed in the liquid storage housing 21, and the lower end opening of the liquid storage cavity 210 is sealed. The second atomization base 25 is disposed above the first atomization base 27, and the atomization cavity 250 is formed between the first atomization base 27 and the second atomization base 25. The upper end of the second atomization base 25 may be embedded into the air outlet tube 22 and in communication with the air outlet tube 22. In some embodiments, the atomizer 20 may further include a sealing sleeve 24 hermetically disposed between the second atomization base 25 and the air outlet tube 22. It may be understood that in other embodiments, the second atomization base 25 may also be integrally formed with the air outlet tube 22 and/or the liquid storage housing 21 in an injection molding manner or the like.
In some embodiments, two clamping slots 260 are further formed between the first atomization base 27 and the second atomization base 25, and two ends of the liquid guiding portion 261 may be respectively accommodated and fixed in the two clamping slots 260. Specifically, the top surface of the first atomization base 27 may be concaved downward into two press-fit slots 276, the bottom surface of the second atomization base 25 may be concaved upward into two press-fit slots 256, and the two press-fit slots 276 respectively cooperate and communicate with the two press-fit slots 256 to form two clamping slots 260.
The liquid guiding portion 261 may include two press-fit portions 2616 and an atomization portion 2617 located between the two press-fit portions 2616. The atomization portion 2617 is located in the atomization cavity 250, and the two press-fit portions 2616 are respectively accommodated in the two clamping slots 260. The shape and the size of the clamping slot 260 are compatible with the shape and the size of the press-fit portion 2616, so that the atomization core 26 can be better accommodated and fixed. In this embodiment, the press-fit portion 2616 is in a circular tubular shape, and correspondingly, the press-fit slot 256 and the press-fit slot 276 are in a circular arc shape and are communicated to form a cylindrical clamping slot 260. Certainly, in other embodiments, the press-fit portion 2616 and the clamping slot 260 may alternatively be in another shape.
In some embodiments, the cavity bottom surface of the liquid storage cavity 210 includes at least one liquid guiding surface 2521 extending axially along the atomization core 26. Preferably, there are two liquid guiding surfaces 2521 that are respectively located on two sides of the atomization core 26 in the transversal direction Y. Each liquid guiding surface 2521 has a structure with a high middle and two low ends, so that the liquid medium can flow from the middle of the liquid guiding surface 2521 to two ends of the liquid guiding surface 2521, and is absorbed and atomized by two ends of the atomization core 26.
Specifically, the liquid guiding surface 2521 is roughly in an inverted V-shape that is inclined gradually from the middle to the two ends, and may include an arc surface or a plane. For example, in some embodiments, as shown in
During inhalation, the liquid medium is supplied to the middle from both ends of the atomization core 26. During an inhalation process, the speeds of consuming the liquid medium on both sides of the atomization core 26 are different, causing the phenomenon that there is a relatively large quantity of liquid mediums on one side of the atomization core 26 and a relatively small quantity of liquid mediums on the other side of the atomization core. For a liquid medium with a high viscosity, due to a low fluidity of the liquid medium, when the liquid medium in the liquid storage cavity 210 is nearly exhausted, unbalanced liquid supply at both ends of the atomization core 26 tends to occur, resulting in dry heating. In addition, a part of the liquid medium at the bottom of the liquid storage housing 210 may be difficult to flow to both ends of the atomization core 26, thereby causing waste. By disposing the liquid guiding surface 2521, the liquid medium can flow to both ends of the atomization core 26 through the liquid guiding surface 2521 under gravity, so as to supply liquid to both ends of the atomization core 26, thereby avoiding dry heating and improving utilization of the liquid medium.
Further, as shown in
In some embodiments, the liquid guiding surface 2521 may be formed on the second atomization base 25. Specifically, the second atomization base 25 may include a body portion 251 and two liquid guiding portions 252 respectively protruding outward from outer wall surfaces on both sides of the body portion 251 in the transversal direction Y. A liquid guiding surface 2521 is formed on the upper surface of each liquid guiding portion 252. The bottom surface of the liquid guiding portion 252 and the bottom surface of the body portion 251 may be flush or not flush. The outer wall surfaces 2522 on the two sides of the two liquid guiding portions 252 in the transversal direction Y are respectively hermetically bonded to the inner wall surfaces on the two sides of the liquid storage housing 21 in the transversal direction Y, so as to avoid that the liquid medium is unable to flow along the liquid guiding surface 2521 due to downward leakage of the liquid medium. Certainly, in other embodiments, a capillary gap may also be formed between the outer wall surfaces 2522 on the two sides of the two liquid guiding portions 252 in the transversal direction Y and the inner wall surfaces on the two sides of the liquid storage housing 21 in the transversal direction Y. In some other embodiments, the liquid guiding surface 2521 may alternatively be formed on the first atomization base 27.
The outer wall surfaces on the two sides of the second atomization base 25 in the transversal direction X respectively form a spacing with the inner wall surfaces on the two sides of the liquid storage housing 21 in the transversal direction X, so as to form a liquid flowing space for the liquid medium to enter the liquid guiding channel 2610. In some embodiments, the second atomization base 25 may further be formed with at least one liquid flowing channel 2510 that communicates the liquid storage cavity 210 with the liquid guiding portion 261. The cross-sectional area of the liquid flowing channel 2510 is less than the cross-sectional area of the liquid guiding channel 2610. When the atomization core 26 works normally, the liquid medium is supplied to the heating portion 262 mainly through the liquid guiding channel 2610. When an air bubble is stuck in the atomization core 26, the air bubble is stuck at inlets of two ends of the liquid guiding channel 2610. Thus, the liquid medium cannot enter the liquid guiding channel 2610. However, the liquid flowing channel 2510 may not be blocked by the air bubble, and the liquid medium in the liquid storage cavity 210 may be supplemented to the liquid guiding portion 261 through the liquid flowing channel 2510, so as to avoid scorch. In addition, the liquid flowing channel 2510 is directly in communication with the outer surface of the liquid guiding portion 261.
Where the liquid flowing channel 2510 is closer to the atomization cavity 250 or the heating portion 262, the temperature of the liquid medium is higher and the viscosity thereof is lower, so that fluidity of the liquid medium is stronger, and the liquid medium can be rapidly replenished to the liquid guiding portion 261.
The liquid flowing channel 2510 may be formed by a recess in the outer wall surface of the body portion 251, and one end of the liquid flowing channel 2510 may be in communication with the press-fit slot 256, so as to be in communication with the outer surface of the liquid guiding portion 261. In some embodiments, there are at least two liquid flowing channels 2510, and the at least two liquid flowing channels 2510 are respectively in communication with two press-fit slots 256, so as to communicate with two press-fit portions 2616 at two ends of the liquid guiding portion 261, so that a liquid supply effect is better. In this embodiment, there are four liquid flowing channels 2510. Each press-fit slot 256 is in communication with two liquid flowing channels 2510.
The cross-sectional size of each liquid flowing channel 2510 can be designed according to the viscosity of the liquid medium. Generally, to ensure stability of liquid flowing, a greater viscosity of the liquid medium leads to a larger cross-sectional size of the liquid flowing channel 2510.
For example, for a liquid medium with a low viscosity (e.g., a viscosity below about 10 W), the width of the liquid flowing channel 2510 is ≥1.2 mm. For a liquid medium with an intermediate viscosity (e.g., a viscosity of 10 W to 100 W), the width of the liquid flowing channel 2510 is ≥1.8 mm. For a liquid medium with an intermediate to high viscosity (e.g., a viscosity of 100 W to 500 W), the width of the liquid flowing channel 2510 is ≥2.5 mm. For a liquid medium with a viscosity of 400 W, the width of the liquid flowing channel 2510 is 3 mm to 4 mm.
In another aspect, the cross-sectional size of the liquid flowing channel 2510 should not be too large, otherwise, the product size will be increased. In some embodiments, the width of the cross-section of each liquid flowing channel 2510 may be 0.6 mm to 2.5 mm, and the depth thereof may be 0.5 mm to 1.0 mm.
In addition, because the liquid flowing channel 2510 supplies liquid from the press-fit portions 2616 at both ends of the liquid guiding portion 261, the press-fit portions 2616 should not be too tight and too long, otherwise, the liquid supply is difficult. However, the press-fit portions 2616 being too loose or too narrow leads to liquid leakage.
Generally, the outer diameter of the press-fit portion 2616 may be approximately 1.5 mm to 5 mm. The difference between the outer diameter of the press-fit portion 2616 and the pore size of the clamping slot 260 may be-0.2 mm to 0.6 mm (for example, the outer diameter of the press-fit portion 2616 is approximately 2.4 mm, and the aperture of the clamping slot 260 is 1.8 mm to 2.6 mm). The length of each press-fit portion 2616 (that is, the length along the axial direction of the atomization core 26) may be 0.8 mm to 2.5 mm. These two sizes are mutually fitted and balanced, and a relatively good liquid supply effect and anti-liquid leakage effect can be achieved.
The first atomization base 27 may be embedded on the lower end of the liquid storage housing 21, and may be made of an elastic material such as silicone.
On one hand, at least a part of the outer wall surface of the first atomization base 27 made of an elastic material is sealed and matched with the inner wall surface of the liquid storage housing 21, so that the lower end opening of the liquid storage cavity 210 can be reliably sealed, and liquid leakage can be prevented. On the other hand, the press-fit slot 276 is formed on the first atomization base 27, the atomization core 26 is clamped between the first atomization base 27 and the second atomization base 25, and elastic performance of the first atomization base 27 can provide a specific buffer space, so as to avoid damage caused to the atomization core 26 by rigid clamping, and can further improve sealing between the press-fit portion 2616 of the atomization core 26 and the press-fit slot 276.
An air inlet hole 2710 that communicates the atomization cavity 250 with the outside is further formed on the first atomization base 27. The cross-sectional shape of the air inlet hole 2710 is not limited, for example, may be a circular shape, an oval shape, a square shape, or the like. In this embodiment, the cross-sectional shape of the air inlet hole 2710 is approximately a rectangle-like shape.
In some embodiments, the upper surface of the first atomization base 27 (that is, the side surface facing the atomization cavity 250) may further be recessed to form at least one first liquid storage groove 2711. The first liquid storage groove 2711 is located below the atomization portion 2617 of the atomization core 26, and can carry a leaked liquid or condensate flowing down from the atomization core 26. In addition, the first liquid storage groove 2711 is further in communication with the atomization core 26, and the liquid medium stored in the first liquid storage groove 2711 can be absorbed back to the atomization core 26 for atomization again, thereby implementing efficient use of the liquid medium.
Specifically, the first atomization base 27 includes two pressing portions 2716 disposed at an interval in the transversal direction X, the two press-fit slots 276 are respectively formed on the two pressing portions 2716, and two ends of the atomization core 26 are respectively rack-installed in the two press-fit slots 276 of the two pressing portions 2716. The at least one first liquid storage groove 2711 is formed between the two pressing portions 2716, that is, a part of the boundary of the at least one first liquid storage groove 2711 is defined by two opposing surfaces of the two pressing portions 2716.
Further, the first atomization base 27 further includes two barrier walls 2712 located between the two pressing portions 2716. The two barrier walls 2712 are disposed at an interval in the transversal direction X, an air inlet hole 2710 is formed between the two barrier walls 2712, and one first liquid storage groove 2711 is formed between the outer wall surface of each barrier wall 2712 (that is, the side surface far away from the air inlet hole 2710) and one corresponding pressing portion 2716.
The depth of the first liquid storage groove 2711 should not be too deep. Otherwise, the liquid medium in the first liquid storage groove 2711 is difficult to flow back to the atomization core 26. Certainly, the depth of the first liquid storage groove 2711 should not be too shallow. Otherwise, the liquid storage space of the first liquid storage groove 2711 is too small. In some embodiments, the depth of the first liquid storage groove 2711 may be 1 mm to 3 mm. Because the distance between the first liquid storage groove 2711 and the atomization core 26 is relatively small, the liquid medium in the first liquid storage groove 2711 can flow back to the atomization core 26 by means of capillary action, thereby improving a reflux effect.
By disposing the first liquid storage groove 2711, the electronic atomization apparatus 100 can achieve a relatively good anti-liquid leakage effect in different working states or working environments, and implement efficient utilization of the liquid medium. Specific descriptions are as follows:
When the liquid supply to the atomization core 26 is sufficient, the liquid medium is supplied from both ends of the atomization core 26 to the middle, so that a small amount of liquid medium flows downward during inhalation. In this case, the first liquid storage groove 2711 can catch the small amount of liquid medium, and then absorb the liquid medium back to the atomization core 26 for atomization again, so as to implement efficient utilization of the liquid medium.
When the electronic atomization apparatus 100 moves from a low-temperature environment to a high-temperature environment, air in the liquid storage cavity 210 is affected by the temperature rise and is expanded, which causes a positive pressure in the liquid storage cavity 210. The positive pressure can push the liquid medium out of the liquid storage cavity 210 to form leakage. The leaked liquid medium is stored in the first liquid storage groove 2711. During inhalation, the liquid medium stored in the first liquid storage groove 2711 is preferentially consumed, or when the temperature of the electronic atomization apparatus 100 decreases, a negative pressure in the liquid storage cavity 210 draws back the liquid medium stored in the first liquid storage groove 2711 to the liquid storage cavity 210.
During inhalation, the atomization core 26 may have a slight liquid explosion phenomenon, and the liquid explosion may also be collected in the first liquid storage groove 2711. In addition, when there is a relatively large quantity of inhalation ports, condensate is generated in the air outlet channel 220. When the electronic atomization apparatus 100 is placed vertically, the condensate flows back to the atomization cavity 250, and is further caught in the first liquid storage groove 2711 located below the atomization cavity 250.
In some embodiments, the nearest distance L between the outer wall surface of the atomization core 26 and the cavity wall surface of the atomization cavity 250 in the transversal direction Y is greater than or equal to 1.0 mm, so that during inhalation, the aerosol generated by the atomization core 26 can be taken away as much as possible by the airflow. Due to a limitation by the first liquid storage groove 2711, the width of the air inlet hole 2710 in the transversal direction X is less than the width of the atomization cavity 250 (that is, the distance between two pressing portions 2716). In some embodiments, the minimum width d of the air inlet hole 2710 in the transversal direction X may be 1.8 mm to 4 mm. In this range, it may be ensured that the air inlet hole 2710 has an enough flow-through area, so that sufficient airflow can enter the atomization cavity 250 during inhalation, and the aerosol in the atomization cavity 250 can be taken away as much as possible. In addition, it can be further ensured that the first liquid storage groove 2711 has an enough liquid storage space. Certainly, in other embodiments, the first atomization base 27 may not be disposed with the first liquid storage groove 2711. In this case, the width of the air inlet hole 2710 may be equal to the width of the atomization cavity 250.
As shown in
In some embodiments, the holder 50 may include a holder body 51 and a support portion 52 protruding upward from the holder body 51. Both the battery 30 and the circuit board 40 may be installed in the holder body 51. The support portion 52 is formed by extending the top wall upward of the holder body 51, and the bottom of the first atomization base 27 may be sleeved on the support portion 52. The support portion 52 may also have at least one through hole 520 running through it for the electrode lead 263 to pass through and/or for airflow circulation.
In some embodiments, the top surface of the support portion 52 (that is, the side surface facing the atomization cavity 250) may further be recessed to form a second liquid storage groove 521. The second liquid storage groove 521 is located below the first liquid storage groove 2711. When the liquid storage space of the first liquid storage groove 2711 is insufficient to cause the liquid medium to leak out, the liquid medium can be caught by the second liquid storage groove 521, thereby further improving the anti-liquid leakage effect. For example, when the electronic atomization apparatus 100 moves from a low-temperature environment to a high-temperature environment and the temperature difference is relatively large, there is a relatively large quantity of liquid mediums leaked from the liquid storage cavity 210, which causes the liquid storage space of the first liquid storage groove 2711 to be insufficient. In this case, the excess liquid medium flows downward to the second liquid storage groove 521. The depth of the second liquid storage groove 521 may be greater than or equal to 3 mm, so that the second liquid storage groove 521 has a relatively large liquid storage space.
The through hole 520 is located in the second liquid storage groove 521. In this embodiment, there are two through holes 520, and the two through holes 520 are respectively located on two sides of the second liquid storage groove 521 in the length direction. The upper end surface of the through hole 520 is higher than the groove bottom surface of the second liquid storage groove 521, so as to prevent the liquid medium in the second liquid storage groove 521 from flowing into the through hole 520 and blocking the through hole 520 to affect inhalation or flowing out of the through hole 520 to cause leakage.
In some embodiments, the electrode lead 263 may be welded to the circuit board 40 after passing through the holder 50, so that the atomizer 20 is installed on the holder 50 in an undetachable manner. It may be understood that in other embodiments, the atomizer 20 and the holder 50 may also be respectively provided with electrode posts. When the atomizer 20 is installed on the holder 50, the electrode post of the atomizer 20 is in contact and conducted with the electrode post on the holder 50, so that a detachable connection between the atomizer 20 and the holder 50 can be realized.
It may be understood that the foregoing technical features may be used in any combination without any limitation.
While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.
The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202322875728.6 | Oct 2023 | CN | national |
