Atomizer and electronic atomization device

Abstract

The invention relates to an atomizer and an electronic atomization device. The electronic atomization device comprises an atomizer and a control circuit electrically connected with the atomizer. The atomizer comprises a shell internally provided with a liquid storage cavity; the first atomizing seat is at least partially arranged in the shell; the second atomizing seat is arranged in the shell, and an atomizing cavity is formed between the second atomizing seat and the first atomizing seat; and the atomizing core is at least partially arranged in the atomizing cavity. And at least one liquid discharging channel for communicating the liquid storage cavity with the atomizing core is formed on the second atomizing seat. By arranging the liquid discharging channel, when air bubbles are blocked in the atomizing core and liquid supply is not smooth, the liquid matrix in the liquid storage cavity can be supplemented to the atomizing core through the liquid discharging channel, and therefore dry burning is avoided.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and more specifically, to an atomizer and an electronic atomization device. Background Art

[0002] The electronic atomization device generally includes an atomizer and a power supply device. The power supply device is used to supply power to the atomizer. The atomizer includes a liquid storage chamber and an atomization core. The liquid storage chamber is used to store the liquid matrix. The atomization core is used to heat and atomize the liquid matrix after power is turned on to generate an aerosol for absorption.

[0003] In an existing atomizer core structure, the liquid storage chamber is connected to the end of the atomizer core. During the suction process of the atomizer, especially when the temperature of the atomizer core decreases and the viscosity of the liquid matrix increases, bubbles are easily stuck near the end of the atomizer core. The bubbles will be stuck on the atomizer core and difficult to detach, which will cause poor liquid conduction and lead to dry burning. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an improved atomizer and an electronic atomization device having the atomizer in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is: construct an atomizer, comprising:

[0006] A housing having a liquid storage cavity formed therein;

[0007] a first atomizing seat at least partially disposed in the housing;

[0008] A second atomizer seat is disposed in the housing, an atomizer chamber is formed between the second atomizer seat and the first atomizer seat; and

[0009] An atomizing core at least partially disposed in the atomizing chamber;

[0010] At least one lower liquid channel is formed on the second atomizer seat, which connects the liquid storage cavity with the atomizer core.

[0011] In some embodiments, at least one slot is formed between the second atomizer seat and the first atomizer seat, and the atomizer core includes at least one pressing portion disposed in the at least one slot.

[0012] The at least one lower liquid channel is formed on the outer wall surface of the second atomizer seat and is communicated with the at least one pressing portion.

[0013] In some embodiments, the difference between the outer diameter of the pressing portion and the aperture of the slot is -0.2 mm to 0.6 mm, and the axial length of each pressing portion is 0.8 mm to 2.5 mm.

[0014] In some embodiments, the cross-section of the lower liquid channel has a width of 0.6 mm to 2.5 mm and a depth of 0.5 mm to 1.0 mm.

[0015] In some embodiments, the atomizer further comprises an air outlet pipe disposed in the shell, the inner wall surface of the air outlet pipe defines an air outlet channel connected to the atomization chamber, and the outer wall surface of the air outlet pipe and the inner wall surface of the shell define the liquid storage chamber.

[0016] In some embodiments, the atomization core includes a liquid conducting portion having a liquid conducting channel formed therein and a heating portion in contact with an outer surface of the liquid conducting portion, at least one end of the liquid conducting channel is connected to the liquid storage chamber, and the at least one lower liquid channel is connected to the outer surface of the liquid conducting portion.

[0017] In some embodiments, both ends of the liquid conducting channel are connected to the liquid storage cavity.

[0018] In some embodiments, the liquid-conducting portion includes a cotton layer, and the cotton layer is in contact with the heat-generating portion.

[0019] In some embodiments, the liquid-conducting portion includes a support member and a liquid-conducting layer sleeved on the support member.

[0020] The liquid conducting channel is formed in the support member, and at least one liquid conducting hole for connecting the liquid conducting channel with the liquid conducting layer is arranged on the side wall of the support member.

[0021] The present invention further provides an electronic atomization device, comprising the atomizer described above and a control circuit electrically connected to the atomizer.

[0022] The implementation of the present invention has at least the following beneficial effects: by providing a lower liquid channel, when bubbles are stuck in the atomizer core, resulting in poor liquid supply, the liquid matrix in the liquid storage chamber can be replenished to the atomizer core through the lower liquid channel, thereby avoiding dry burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 is a side view of an electronic atomization device in some embodiments of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the atomizer;

[0026] Figure 3 yes Figure 2 A schematic diagram of the longitudinal cross-sectional structure of the atomizer shown;

[0027] Figure 4 yes Figure 2 A cross-sectional view of a portion of the structure of the atomizer shown;

[0028] Figure 5 yes Figure 2 A schematic diagram of the exploded structure of the atomizer shown;

[0029] Figure 6 yes Figure 5 A schematic diagram of the three-dimensional structure of the middle seal;

[0030] Figure 7 yes Figure 5 Schematic diagram of the three-dimensional structure of the middle base. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings or the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Figure 1 An electronic atomization device 1 in some embodiments of the present invention is shown, and the electronic atomization device 1 includes an atomizer 100 and a power supply device 200 connected to the atomizer 100. The power supply device 200 generally includes a battery for powering the atomizer 100 and a control circuit for controlling the heating of the atomizer 100. The atomizer 100 is used to contain a liquid matrix and heat and atomize the liquid matrix to generate an aerosol after power is turned on. The liquid matrix includes, but is not limited to, materials for medical, health, health, and beauty purposes.

[0037] In some embodiments, the atomizer 100 and the power supply device 200 may be roughly rectangular and cylindrical, and the two may be mechanically and electrically connected together along the axial direction. Furthermore, the atomizer 100 and the power supply device 200 may be connected together in a detachable manner such as a magnetic connection, a threaded connection, a snap connection, etc. Of course, in other embodiments, the atomizer 100 and the power supply device 200 may also be connected together in a non-detachable manner. In addition, the cross-sectional shape of the atomizer 100 and / or the power supply device 200 is not limited to a rectangle, and may also be other shapes such as a circle, a racetrack, or an ellipse.

[0038] like Figures 2 to 3As shown, the atomizer 100 may include a housing 12 and an atomizing core 14 disposed in the housing 12. A liquid storage chamber 120 and an air outlet channel 160 separated from each other are formed in the housing 12. The atomizing core 14 is in liquid-conducting communication with the liquid storage chamber 120 and in air-conducting communication with the air outlet channel 160, and is used to heat and atomize the liquid matrix in the liquid storage chamber 120 to generate an aerosol after power is turned on, and the aerosol is then output through the air outlet channel 160 to be absorbed by the user.

[0039] In some embodiments, the housing 12 may be in the shape of a tube with openings at both ends. The atomizer 100 may also include a nozzle cover 11 and a first atomizer seat 13 respectively disposed at both ends of the housing 12, and an air outlet pipe 16 and a second atomizer seat 15 disposed in the housing 12. Among them, the nozzle cover 11 is sealed at the upper end of the housing 12, and an air intake channel 110 is formed thereon to connect the air outlet channel 160 with the outside world. The first atomizer seat 13 is sealed at the lower end of the housing 12 and can be used for supporting and installing the atomizer core 14. The air outlet pipe 16 is longitudinally arranged in the housing 12 and can be coaxially arranged with the housing 12, but is not limited to a coaxial arrangement. The inner wall surface of the air outlet pipe 16 defines the air outlet channel 160, and the outer wall surface of the air outlet pipe 16 and the inner wall surface of the housing 12 define the liquid storage chamber 120.

[0040] Specifically, the nozzle cover 11 may include a nozzle portion 111 and a sealing portion 112 that are nested with each other. Among them, the sealing portion 112 is at least partially embedded in the upper end opening of the shell 12, and it can be made of elastic materials such as silicone. The sealing portion 112 made of elastic material can provide a good sealing effect for the liquid storage chamber 120. In addition, it can also make the plug-in and pull-out disassembly between the nozzle cover 11 and the shell 12 very convenient, so that the nozzle cover 11 can be easily removed from the shell 12 and the liquid matrix can be added to the liquid storage chamber 120. Of course, the atomizer 100 can also inject liquid into the liquid storage chamber 120 by other known methods; or, the atomizer 100 can also be disposable, that is, it can be discarded after the liquid matrix is ​​exhausted. The nozzle portion 111 can be made of hard materials such as plastic, which is conducive to improving the structural strength of the nozzle cover 11.

[0041] Of course, in other embodiments, the nozzle cover 11 may also be an integrated structure made of only plastic or silicone. In other embodiments, the nozzle cover 11 and the housing 12 may also be integrally formed, for example, the nozzle cover 11 and the housing 12 are integrally formed by injection molding.

[0042] The upper end of the air outlet pipe 16 can be embedded in the sealing portion 112 and communicated with the air inhalation channel 110. The outer wall surface of the air outlet pipe 16 and the inner wall surface of the sealing portion 112 can be sealed by interference fit, so that the air outlet channel 160 can be well sealed and isolated from the liquid storage chamber 120. In other embodiments, the air outlet pipe 16 can also be integrally formed with the suction nozzle cover 11, for example, it can be formed by the top wall of the suction nozzle portion 111 extending downwardly as a whole.

[0043] The first atomizer seat 13 is at least partially disposed in the lower end opening of the housing 12, and the second atomizer seat 15 is disposed above the first atomizer seat 13. An atomizer cavity 150 is formed between the first atomizer seat 13 and the second atomizer seat 15. The atomizer cavity 150 is connected to the air outlet channel 160, and the atomizer core 14 is at least partially disposed in the atomizer cavity 150.

[0044] Combination Figures 3 to 5 As shown, the atomizer core 14 is disposed in the housing 12 in a transverse direction. More specifically, the axial direction of the atomizer core 14 may be perpendicular to the axial direction of the housing 12. At least one end of the atomizer core 14 is connected to the liquid storage chamber 120. Both ends of the atomizer core 14 may be pressed between the first atomizer seat 13 and the second atomizer seat 15, thereby achieving the installation and positioning of the atomizer core 14.

[0045] In some embodiments, the top surface of the first atomizer seat 13 may be concave to form two pressing grooves 1340, and the bottom surface of the second atomizer seat 15 may be concave to form two pressing grooves 1540. The two pressing grooves 1340 are respectively connected to the two pressing grooves 1540 to form two card grooves 140, which are respectively used to accommodate and fix the two ends of the atomizer core 14.

[0046] The atomizer core 14 may include a liquid guide portion 141 and a heating portion 142 in contact with the liquid guide portion 141. The liquid guide portion 141 is at least partially disposed in the atomization chamber 150 and communicated with the liquid storage chamber 120, and is used to absorb the liquid matrix from the liquid storage chamber 120. The heating portion 142 is located in the atomization chamber 150 and may contact the outer wall surface of the liquid guide portion 141, and is used to heat and atomize the liquid matrix on the liquid guide portion 141 after power is turned on. Furthermore, the atomizer core 14 also includes two electrode leads 143 respectively connected to the two ends of the heating portion 142, and the heating portion 142 is connected to an external power source through the two electrode leads 143.

[0047] The liquid guide portion 141 includes two pressing portions 1416 and an atomizing portion 1417 located between the two pressing portions 1416. The atomizing portion 1417 is located in the atomizing chamber 150. The heating portion 142 is disposed on the outer wall surface of the atomizing portion 1417. In some embodiments, the heating portion 142 may be a metal heating wire wound around the atomizing portion 1417.

[0048] The two pressing parts 1416 are respectively received in the two card slots 140. The shape and size of the card slot 140 are adapted to the shape and size of the pressing part 1416 so as to better accommodate and fix the atomizer core 14. In the present embodiment, the pressing part 1416 is in the shape of a circular tube, and accordingly, the pressing groove 1340 and the pressing groove 1540 are both in the shape of a circular arc and connected to form a cylindrical card slot 140. Of course, in other embodiments, the pressing part 1416 and the card slot 140 may also be in other shapes. In other embodiments, the number of the pressing part 1416 and the card slot 140 is also not limited, and it may also be one or more than two; in addition, the card slot 140 is not limited to the end position for fixing the atomizer core 14, that is, the pressing part 1416 is not limited to the end position located at the liquid guide part 141.

[0049] In some embodiments, the liquid guiding portion 141 is tubular, and a liquid guiding channel 1410 is formed therein. The liquid guiding channel 1410 can be coaxially arranged with the liquid guiding portion 141, but is not limited to a coaxial arrangement. Both axial ends of the liquid guiding channel 1410 are connected to the liquid storage chamber 120, so that the liquid matrix in the liquid storage chamber 120 can enter the liquid guiding channel 1410 through both ends of the liquid guiding portion 141, and then be conducted to the heating portion 142 through the liquid guiding portion 141 for heating.

[0050] Of course, in other embodiments, only one end of the liquid guiding channel 1410 may be connected to the liquid storage chamber 120. In addition, part of the liquid matrix in the liquid storage chamber 120 may not be guided to the liquid guiding portion 141 through the liquid guiding channel 1410, but may be directly absorbed through the part of the liquid guiding portion 141 that extends into the liquid storage chamber 120 or is connected to the liquid storage chamber 120.

[0051] In some embodiments, the liquid-conducting portion 141 may include a support member 1411 and a liquid-conducting layer 1412 sleeved on the support member 1411. The support member 1411 is tubular, such as a round tube, and the liquid-conducting channel 1410 may penetrate both ends of the support member 1411 along the axial direction. At least one liquid-conducting hole 1415 is provided through the tube wall of the support member 1411, and the liquid matrix in the liquid-conducting channel 1410 may flow to the liquid-conducting layer 1412 through the liquid-conducting hole 1415. The shape of the liquid-conducting hole 1415 is not limited here, including but not limited to a circular hole, an elliptical hole, a long hole or a square hole, etc.

[0052] In this embodiment, there are multiple liquid guide holes 1415, each of which is a long hole extending along the axial direction of the support member 1411. The multiple liquid guide holes 1415 are evenly spaced along the circumference of the support member 1411, which can ensure that the support member 1411 has a sufficient liquid supply area and the liquid supply is uniform. Of course, in other embodiments, the extension direction of the long hole can also be inclined at a certain angle to the axial direction of the support member 1411. In other embodiments, the multiple liquid guide holes 1415 can also be evenly spaced in the axial and circumferential directions of the support member 1411 in a lattice shape.

[0053] The support member 1411 has a certain mechanical strength to provide a certain support strength for the liquid-conducting layer 1412 and the heating part 142. In some embodiments, the support member 1411 can be made of metal materials, such as stainless steel, aluminum alloy or brass alloy. Metal materials have the advantages of high temperature resistance, no pollution, and no odor. In addition, metal materials can better control dimensional accuracy and errors during processing, which is convenient for controlling the size of the support member 1411 during the manufacturing process, so that the processing accuracy of the support member 1411 is higher, and the support member 1411 can be made very thin. At the same time, the metal material itself has a certain thermal conductivity, which can improve the atomization efficiency of the atomization core 14. Of course, in other embodiments, the support member 1411 can also be made of other materials such as glass, ceramics, and hard plastics.

[0054] In some embodiments, the liquid conducting layer 1412 may include a heat conducting layer 1413 and an isolation layer 1414. The isolation layer 1414 may be sleeved outside the heat conducting layer 1413 and in contact with the heating portion 142, and is used to isolate the heat conducting layer 1413 from the heating portion 142. The liquid matrix in the liquid conducting channel 1410 may be guided to the heating portion 142 through the liquid conducting hole 1415, the heat conducting layer 1413, and the isolation layer 1414 in sequence. The heating portion 142 heats and atomizes the liquid matrix to generate an aerosol after being powered on and heated. The heat conducting layer 1413 has a high thermal conductivity coefficient. The isolation layer 1414 may transfer part of the heat generated by the heating portion 142 to the heat conducting layer 1413. The heat conducting layer 1413 may transfer the heat to the nearby liquid matrix faster. After the liquid matrix near the heat conducting layer 1413 is heated and heated, the viscosity is reduced, thereby improving the fluidity, thereby improving the fluidity of the liquid matrix near the heat conducting layer 1413, and then improving the liquid conducting effect and ventilation of the atomization core 14.

[0055] In some embodiments, the heat-conducting layer 1413 can be made of one or more metal materials such as stainless steel, nickel, nickel alloy, aluminum, aluminum alloy, copper, copper alloy, etc. Metal materials have good thermal conductivity and can better control dimensional accuracy and processing errors during processing. In some embodiments, the heat-conducting layer 1413 is a metal mesh layer, and the liquid matrix is ​​conducted through the porous structure of the metal mesh layer. It can be understood that when the structural strength of the heat-conducting layer 1413 is sufficient, the atomizer core 14 may not include the support member 1411.

[0056] Of course, in other embodiments, the heat-conducting layer 1413 may also be made of a non-metallic material with a good thermal conductivity.

[0057] The isolation layer 1414 may be a cotton layer, and the specific material of the cotton layer is not limited. For example, it may be natural organic cotton or organic synthetic polymer porous foam cotton. The cotton layer may stably store part of the liquid matrix and quickly conduct the liquid matrix to the heating portion 142. In addition, when the heat-conducting layer 1413 is made of metal, the isolation layer 1414 may also isolate the heat-conducting layer 1413 from the heating portion 142, thereby preventing the heating portion 142 from being electrically connected to the heat-conducting layer 1413, thereby improving the safety performance of the atomizer 100.

[0058] It can be understood that in other embodiments, the liquid conductive layer 1412 is not limited to the above-mentioned specific structure. For example, in some embodiments, the number of layers of the heat conductive layer 1413 and the isolation layer 1414 are both multiple layers, and each heat conductive layer 1413 and each isolation layer 1414 can be arranged alternately one by one, or, multiple layers of isolation layers 1414 can be arranged between each two adjacent layers of heat conductive layers 1413, or, multiple layers of heat conductive layers 1413 can be arranged between each two adjacent layers of isolation layers 1414. In other embodiments, the number of layers of the heat conductive layer 1413 can be one layer, and the number of layers of the isolation layer 1414 can be multiple layers; or, the number of layers of the heat conductive layer 1413 can be multiple layers, and the number of layers of the isolation layer 1414 can be one layer. In some other embodiments, the heat conductive layer 1413 and the isolation layer 1414 can be woven together to form a composite liquid conductive layer, for example, metal and cotton are woven together to form a composite liquid conductive layer. Of course, the liquid conducting layer 1412 may also only include the cotton layer without including the heat conducting layer 1413 .

[0059] The second atomizer seat 15 is arranged in the housing 12, which can be an independent component, or can be integrally formed with the air outlet pipe 16 or the housing 12. In the present embodiment, the second atomizer seat 15 and the housing 12 are integrally formed by injection molding, and the lower end of the air outlet pipe 16 is embedded in the second atomizer seat 15 and communicated with the atomization chamber 150. A gap is formed between the lateral sides parallel to the axial direction of the second atomizer seat 15 and the inner wall surface of the housing 12 to form a lower liquid space for the liquid matrix to enter the liquid guide channel 1410. The other lateral sides of the second atomizer seat 15 are integrated with the inner wall surface of the housing 12.

[0060] In some embodiments, at least one lower liquid channel 151 that connects the liquid storage chamber 120 with the liquid guide portion 141 may also be formed on the second atomizer seat 15. The cross-sectional area of ​​the lower liquid channel 151 is smaller than the cross-sectional area of ​​the liquid guide channel 1410. When the atomizer core 14 works normally, the liquid matrix is ​​mainly supplied to the heating portion 142 through the liquid guide channel 1410. When the atomizer core 14 is stuck with bubbles, the bubbles will be stuck at the entrances at both ends of the liquid guide channel 1410, causing the liquid matrix to be unable to enter the liquid guide channel 1410, but the lower liquid channel 151 may not be blocked by bubbles, and the liquid matrix in the liquid storage chamber 120 can be replenished to the liquid guide portion 141 through the lower liquid channel 151 to avoid burning. At the same time, the lower liquid channel 151 is directly connected to the outer surface of the liquid guide portion 141. In the place where the lower liquid channel 151 is closer to the atomizer chamber 150 or the heating portion 142, the temperature of the liquid matrix is ​​higher and the viscosity is lower, so that the fluidity of the liquid matrix is ​​stronger, so that the liquid matrix can be quickly replenished to the liquid guide portion 141.

[0061] The lower liquid channel 151 may be formed by a depression in the outer wall of the second atomizer seat 15, and one end of the lower liquid channel 151 may be connected to the pressing groove 1540, and further connected to the outer surface of the liquid guide portion 141. In this embodiment, the lower liquid channel 151 extends longitudinally downward from the top of the outer wall of the second atomizer seat 15 to be connected to the pressing groove 1540.

[0062] In addition, in this embodiment, there are two lower liquid channels 151, which are respectively connected to the two pressing parts 1416 at both ends of the liquid guide part 141, so that the liquid supply effect is better. Of course, in other embodiments, the number of the lower liquid channel 151 can also be one or more than two.

[0063] The cross-sectional dimensions of each liquid lowering channel 151 can be designed according to the viscosity of the liquid matrix. Generally, to ensure stable liquid lowering, the greater the viscosity of the liquid matrix, the larger the cross-sectional dimensions of the liquid lowering channel 151. For example, for a liquid matrix with low viscosity (e.g., viscosity below about 10W), the width of the liquid lowering channel 151 is ≥1.2mm. For a liquid matrix with medium viscosity (e.g., viscosity of 10W to 100W), the width of the liquid lowering channel 151 is ≥1.8mm. For a liquid matrix with medium to high viscosity (e.g., viscosity of 100W to 500W), the width of the liquid lowering channel 151 is ≥2.5mm. For a liquid matrix with a viscosity of 400W, the width of the liquid lowering channel 151 is 3mm to 4mm.

[0064] On the other hand, the cross-sectional dimension of the lower liquid channel 151 should not be too large, otherwise it will lead to an increase in the product size. In some embodiments, the width of the cross-sectional dimension of each lower liquid channel 151 can be 0.6 mm to 2.5 mm, and the depth can be 0.5 mm to 1.0 mm.

[0065] In addition, since the lower liquid channel 151 supplies liquid from the press-fit parts 1416 at both ends of the liquid guide part 141, the press-fit parts 1416 are not easy to be too tight or too long, otherwise it will cause difficulty in supplying liquid. However, if the press-fit parts 1416 are too loose or too narrow, it is easy to cause leakage.

[0066] Generally speaking, the outer diameter of the pressing part 1416 can be approximately 1.5 mm to 5 mm. The difference between the outer diameter of the pressing part 1416 and the aperture of the card slot 140 can be -0.2 mm to 0.6 mm (for example, the outer diameter of the pressing part 1416 is approximately 2.4 mm, and the aperture of the card slot 140 is 1.8 mm to 2.6 mm). The length of each pressing part 1416 (i.e., the length along the axial direction of the atomizer core 14) can be 0.8 mm to 2.5 mm. These two sizes are balanced with each other to achieve a better liquid supply effect and liquid leakage prevention effect.

[0067] Combination Figures 3 to 7 As shown, the first atomizer seat 13 may include a base 132 and a sealing sleeve 131 sleeved on the base 132. Among them, the sealing sleeve 131 can be made of elastic materials such as silicone. On the one hand, at least part of the outer wall surface of the sealing sleeve 131 made of elastic material is sealed with the inner wall surface of the shell 12, so that the lower end opening of the liquid storage chamber 120 can be reliably sealed to prevent leakage. On the other hand, the pressing groove 1340 is formed on the sealing sleeve 131, and the atomizer core 14 is clamped between the sealing sleeve 131 and the second atomizer seat 15. The elastic performance of the sealing sleeve 131 can provide a certain buffer space to avoid damage to the atomizer core 14 caused by rigid clamping, and can also improve the sealing between the pressing part 1416 of the atomizer core 14 and the pressing groove 1340.

[0068] The base 132 can be made of a hard material such as plastic to improve the structural strength of the first atomizer seat 13. In some embodiments, the first atomizer seat 13 may also include two electrode columns 133 embedded in the base 132. The two electrode leads 143 of the atomizer core 14 are respectively connected to the two electrode columns 133, and then connected to the power supply device 200 through the two electrode columns 133. Of course, in other embodiments, the number of electrode columns 133 is not limited to two, and it can also be one or more than two.

[0069] The base 132 may also be formed with an air inlet 1320 that connects the atomizing chamber 150 to the outside. In the present embodiment, there is one air inlet 1320 and it is coaxially arranged with the base 132, but it is not limited to the coaxial arrangement. Of course, in other embodiments, there may be multiple air inlet 1320. The cross-sectional shape of the air inlet 1320 is not limited, for example, it may be various shapes such as circular, elliptical, square, etc.

[0070] Correspondingly, the sealing sleeve 131 is formed with a vent hole 1310 that connects the air inlet 1320 with the atomizing chamber 150. The air inlet 1320, the vent hole 1310, and the atomizing chamber 150 can be sequentially connected from bottom to top and can be coaxially arranged. The cross-sectional shape of the vent hole 1310 is not limited, for example, it can be various shapes such as circular, oval, square, etc. The cross-sectional shapes of the vent hole 1310 and the air inlet 1320 can be the same or different.

[0071] In some embodiments, the upper surface of the sealing sleeve 131 (i.e., the surface on one side facing the atomization chamber 150) may also be recessed to form at least one first liquid storage tank 1311. The first liquid storage tank 1311 is located below the atomization portion 1417 of the atomization core 14, and can receive the leaked liquid or condensed liquid flowing down from the atomization core 14. In addition, the first liquid storage tank 1311 is also connected to the atomization core 14, and the liquid matrix stored in the first liquid storage tank 1311 can also be sucked back to the atomization core 14 for re-atomization, thereby realizing efficient utilization of the liquid matrix.

[0072] Specifically, the sealing sleeve 131 includes two pressing portions 1316, two pressing grooves 1340 are respectively formed on the two pressing portions 1316, and two ends of the atomizer core 14 are respectively mounted in the two pressing grooves 1340 of the two pressing portions 1316. The at least one first liquid storage tank 1311 is formed between the two pressing portions 1316, that is, two surfaces of the two pressing portions 1316 disposed opposite to each other define a part of the boundary of the at least one first liquid storage tank 1311.

[0073] Furthermore, the sealing sleeve 131 further includes an annular protrusion 1312 located between the two pressing portions 1316. The inner wall surface of the annular protrusion 1312 defines the vent hole 1310, and the outer wall surface of the annular protrusion 1312 defines a partial boundary of at least one first liquid storage tank 1311. Specifically, in this embodiment, the annular protrusion 1312 may include two side walls 1313 arranged opposite to each other in the axial direction of the atomizer core 14, and a first liquid storage tank 1311 is formed between the outer wall surface of each side wall 1313 and a corresponding pressing portion 1316.

[0074] The depth of the first liquid reservoir 1311 should not be too deep, otherwise the liquid matrix in the first liquid reservoir 1311 will be difficult to flow back to the atomizer core 14. Of course, the depth of the first liquid reservoir 1311 should not be too shallow, otherwise the liquid storage space of the first liquid reservoir 1311 will be too small. In some embodiments, the depth of the first liquid reservoir 1311 can be 1mm to 3mm. Since the distance between the first liquid reservoir 1311 and the atomizer core 14 is small, the liquid matrix in the first liquid reservoir 1311 can flow back to the atomizer core 14 through capillary action, thereby improving the reflux effect.

[0075] By providing the first liquid storage tank 1311, the atomizer 100 can achieve a good anti-leakage effect in different working states or working environments, and realize efficient use of the liquid matrix, which is specifically described as follows:

[0076] When the atomizer core 14 is sufficiently supplied with liquid, the liquid matrix is ​​supplied from both ends of the atomizer core 14 to the middle, so that a small amount of liquid matrix will flow downward during suction. At this time, the first liquid storage tank 1311 can receive the small amount of liquid matrix and suck it back to the atomizer core 14 for re-atomization, thereby realizing efficient utilization of the liquid matrix.

[0077] When the atomizer 100 changes from a low temperature environment to a high temperature environment, the air in the liquid storage chamber 120 expands due to the temperature rise, causing the air pressure in the liquid storage chamber 120 to form a positive pressure, and the positive pressure squeezes the liquid matrix out of the liquid storage chamber 120 to form leakage, and the leaked liquid matrix accumulates in the first liquid storage tank 1311. During suction, the liquid matrix accumulated in the first liquid storage tank 1311 will be consumed first, or, when the temperature of the atomizer 100 decreases, the negative pressure in the liquid storage chamber 120 will suck the liquid matrix accumulated in the first liquid storage tank 1311 back into the liquid storage chamber 120;

[0078] During inhalation, the atomizer core 14 may slightly explode, and the exploded liquid may also be collected in the first liquid storage tank 1311 . In addition, when the number of inhalation ports is large, condensed liquid may be generated in the air outlet channel 160 . When the atomizer 100 is placed vertically, the condensed liquid may flow back into the atomization chamber 150 , and then be received by the first liquid storage tank 1311 located below the atomization chamber 150 .

[0079] The upper surface of the base 132 (i.e., the side surface facing the atomizing chamber 150) may also be recessed to form a second liquid storage tank 1321, which is located below the first liquid storage tank 1311. When the liquid storage space of the first liquid storage tank 1311 is insufficient and causes the liquid matrix to leak out, the liquid matrix can be caught by the second liquid storage tank 1321, thereby further improving the anti-leakage effect. For example, when the atomizer 100 is turned from a low temperature to a high temperature environment and the temperature difference is large, more liquid matrix leaks from the liquid storage chamber 120, resulting in insufficient liquid storage space in the first liquid storage tank 1311. At this time, the excess liquid matrix will flow downward to the second liquid storage tank 1321. The depth of the second liquid storage tank 1321 may be greater than or equal to 3 mm, so that the second liquid storage tank 1321 has a larger liquid storage space.

[0080] The second liquid reservoir 1321 may surround the air inlet 1320 and may be coaxially arranged with the air inlet 1320. The height of the air inlet 1320 protruding from the bottom surface of the second liquid reservoir 1321 is greater than or equal to the depth of the second liquid reservoir 1321, so as to prevent the liquid matrix in the second liquid reservoir 1321 from flowing to the air inlet 1320 and blocking the air inlet 1320 to affect suction, or from flowing out through the air inlet 1320 to cause leakage.

[0081] Further, the projection of at least part of the cross-sectional profile of the vent hole 1310 (i.e., at least part of the cross-sectional inner profile of the annular protrusion 1312) on the base 132 in the vertical direction is located outside the air inlet 1320, thereby preventing the liquid matrix in the first liquid storage tank 1311 from flowing into the air inlet 1320 when flowing downward. At the same time, the cross-sectional area of ​​the vent hole 1310 can be made larger than the cross-sectional area of ​​the air inlet 1320, so that the airflow from the air inlet 1320 can smoothly pass through the vent hole 1310 into the atomization chamber 150.

[0082] In addition, the projection of at least part of the inner contour of the cross section of the annular protrusion 1312 on the base 132 in the vertical direction is located in the second liquid storage tank 1321, so that the liquid matrix in the first liquid storage tank 1311 can be received by the second liquid storage tank 1321 when flowing downward. When the atomizer 100 is inverted, due to the arrangement of the first liquid storage tank 1311, the liquid matrix in the second liquid storage tank 1321 can be prevented from flowing to the air outlet pipe 16 to cause blockage.

[0083] Specifically, in this embodiment, each side wall 1313 includes a middle portion 1314 and two edge portions 1315 respectively located at both ends of the middle portion 1314. The height of the middle portion 1314 protruding from the bottom surface of the first liquid storage tank 1311 is lower than the height of the edge portion 1315 protruding from the bottom surface of the first liquid storage tank 1311, so that the height of the middle portion 1314 determines the depth of the first liquid storage tank 1311. The projection of the inner wall surface of the middle portion 1314 on the base 132 is located in the second liquid storage tank 1321 and outside the air inlet 1320. In this way, when the liquid storage space of the first liquid storage tank 1311 is insufficient and causes the liquid matrix to leak, the liquid matrix will flow downward along the middle portion 1314 and then be received by the second liquid storage tank 1321, and will not flow into the air inlet 1320.

[0084] It can be understood that the above-mentioned technical features can be used in any combination without limitation.

[0085] The above embodiments only express the specific implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the scope covered by the claims of the present invention.

Claims

1. An atomizer, characterized in that: include: A housing (12), wherein a liquid storage chamber (120) is formed in the housing (12); A first atomizing seat (13) at least partially disposed in the housing (12); A second atomizing seat (15) is arranged in the housing (12), an atomizing chamber (150) being formed between the second atomizing seat (15) and the first atomizing seat (13); and an atomizing core (14) at least partially disposed in the atomizing chamber (150); At least one lower liquid channel (151) is formed on the second atomizer seat (15) and connects the liquid storage chamber (120) with the atomizer core (14).

2. The atomizer according to claim 1, characterized in that At least one clamping groove (140) is formed between the second atomizer seat (15) and the first atomizer seat (13), and the atomizer core (14) comprises at least one pressing portion (1416) arranged in the at least one clamping groove (140). The at least one lower liquid channel (151) is formed on the outer wall surface of the second atomizing seat (15) and is in communication with the at least one pressing portion (1416).

3. The atomizer according to claim 2, characterized in that The difference between the outer diameter of the pressing portion (1416) and the aperture of the slot (140) is -0.2 mm to 0.6 mm, and the axial length of each pressing portion (1416) is 0.8 mm to 2.5 mm.

4. The atomizer according to claim 1, characterized in that The cross-sectional width of the lower liquid channel (151) is 0.6 mm to 2.5 mm, and the depth is 0.5 mm to 1.0 mm.

5. The atomizer according to claim 1, characterized in that The atomizer further comprises an air outlet pipe (16) arranged in the outer shell (12); the inner wall surface of the air outlet pipe (16) defines an air outlet channel (160) connected to the atomization chamber (150); and the liquid storage chamber (120) is defined between the outer wall surface of the air outlet pipe (16) and the inner wall surface of the outer shell (12).

6. The atomizer according to any one of claims 1 to 5, characterized in that: The atomizer core (14) comprises a liquid guiding portion (141) having a liquid guiding channel (1410) formed therein, and a heating portion (142) in contact with the outer surface of the liquid guiding portion (141); at least one end of the liquid guiding channel (1410) is connected to the liquid storage chamber (120); and the at least one lower liquid channel (151) is connected to the outer surface of the liquid guiding portion (141).

7. The atomizer according to claim 6, characterized in that Both ends of the liquid guiding channel (1410) are connected to the liquid storage chamber (120).

8. The atomizer according to claim 6, characterized in that The liquid-conducting portion (141) comprises a cotton layer, and the cotton layer is in contact with the heating portion (142).

9. The atomizer according to claim 6, characterized in that The liquid-conducting portion (141) comprises a support member (1411) and a liquid-conducting layer (1412) sleeved on the support member (1411). The liquid conducting channel (1410) is formed in the support member (1411), and at least one liquid conducting hole (1415) is provided on the side wall of the support member (1411) for connecting the liquid conducting channel (1410) with the liquid conducting layer (1412).

10. An electronic atomization device, characterized in that: It comprises the atomizer (100) according to any one of claims 1 to 9 and a control circuit electrically connected to the atomizer (100).

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