Electronic atomization device and atomizer thereof

Abstract

The present application relates to an electronic atomization device and an atomizer thereof, the atomizer comprising a shell with a liquid storage cavity formed inside and a heating seat accommodated in the shell. In the width direction of the atomizer, a first minimum fitting distance is formed between the outer wall surface of the heating seat and the inner wall surface of the shell. In the thickness direction of the atomizer, a second minimum fitting distance is formed between the outer wall surface of the heating seat and the inner wall surface of the shell. The first minimum fitting distance is smaller than the second minimum fitting distance, and by limiting the deformation of the shell along the width direction, the bulging deformation of the shell along the thickness direction is ensured to be smaller or not bulging.

Description

Technical Field

[0001] This invention relates to the field of atomization, and more specifically, to an electronic atomizing device and its atomizer. Background Technology

[0002] Electronic atomizing devices mainly consist of an atomizer and a power supply. Many existing electronic atomizers are flat in shape, which is advantageous for portability. However, in current atomizers, the fit between the atomizer shell and the heating element is not uniform. The flat shape of the atomizer shell makes it prone to deformation under stress in the thickness direction. During assembly, the sealing silicone is usually press-fitted with the atomizer shell, which causes significant bulging in the thickness direction, resulting in an oversized thickness dimension. In more severe cases, this can lead to insufficient airtightness between the sealing silicone and the atomizer shell, causing leakage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an improved atomizer and an electronic atomizing device having the atomizer, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is as follows: constructing an atomizer, including a shell with a liquid storage chamber inside and a heating base housed in the shell; in the width direction of the atomizer, a first minimum mating distance is formed between the outer wall surface of the heating base and the inner wall surface of the shell; in the thickness direction of the atomizer, a second minimum mating distance is formed between the outer wall surface of the heating base and the inner wall surface of the shell; the first minimum mating distance is smaller than the second minimum mating distance.

[0005] In some embodiments, in the width direction of the atomizer, the outer wall surface of the heating base and the inner wall surface of the housing are in a clearance fit, transition fit, or interference fit.

[0006] In some embodiments, in the thickness direction of the atomizer, the outer wall surface of the heating base and the inner wall surface of the housing are in a clearance fit.

[0007] In some embodiments, the first minimum mating distance is -0.08 to 0.1 mm.

[0008] In some embodiments, the second minimum mating distance is 0.08 to 0.2 mm.

[0009] In some embodiments, the housing is a flat cylindrical shape.

[0010] In some embodiments, the heating element includes a body portion and a sleeve portion extending from the body portion toward the liquid reservoir.

[0011] In some embodiments, the outer wall surfaces on both sides of the body portion extend outward to form limiting portions, and the outer wall surface of the limiting portion and the inner wall surface of the housing define the first minimum mating distance.

[0012] In some embodiments, the limiting portion is disposed near the socket portion.

[0013] In some embodiments, the cross-sectional dimensions of the socket are smaller than the cross-sectional dimensions of the body.

[0014] In some embodiments, the atomizer further includes a heating sleeve housed in the housing and fitted onto the sleeve portion.

[0015] In some embodiments, the atomizer further includes an atomizing core, and a receiving cavity for receiving the atomizing core is formed at one end of the heating seat away from the liquid storage cavity. An air outlet channel communicating with the air guide of the atomizing core is also formed inside the housing.

[0016] In some embodiments, the atomizing core includes a liquid absorber that communicates with the liquid storage chamber. The liquid absorber includes a liquid absorber body and two retaining arms that extend outward from both sides of the liquid absorber body along the width direction. The liquid absorber abuts against the cavity wall of the receiving cavity through the two retaining arms.

[0017] In some embodiments, the two sides of the cavity wall that contact the two retaining arms are respectively recessed to form a plurality of heat insulation grooves.

[0018] In some embodiments, the outer wall surfaces of the heating base on both sides along the thickness direction are respectively recessed to form two air guiding channels, and each air guiding channel is connected to the receiving cavity and the air outlet channel respectively.

[0019] In some embodiments, each of the air channels includes a plurality of first air channels extending laterally and a plurality of second air channels extending longitudinally.

[0020] In some embodiments, the heating base has several openings formed on the sidewalls on both sides along the thickness direction, so that a portion of the side of the atomizing core is exposed.

[0021] In some embodiments, each of the air passages is connected to at least one of the openings.

[0022] In some embodiments, the atomizer further includes a base disposed at one end of the housing; the base is connected to the heating element to accommodate and fix the atomizing core.

[0023] The present invention also provides an electronic atomizing device, comprising the atomizer described in any of the above claims and a power supply device electrically connected to the atomizer.

[0024] Implementing the present invention has at least the following beneficial effects: The present invention utilizes the principle that the circumference of the inner wall of the shell is fixed, and by setting the outer wall of the heating base and the inner wall of the shell to fit more tightly in the width direction and looser in the thickness direction, the deformation of the shell in the width direction is restricted, ensuring that the bulging deformation of the shell in the thickness direction is small or does not bulge. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the electronic atomizing device in some embodiments of the present invention;

[0027] Figure 2 yes Figure 1 3D structural diagram of the atomizer;

[0028] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure of the atomizer shown;

[0029] Figure 4 yes Figure 2 A schematic diagram of the BB cross-sectional structure of the atomizer shown;

[0030] Figure 5 yes Figure 2 A schematic diagram of the exploded structure of the atomizer shown;

[0031] Figure 6 yes Figure 5 A three-dimensional structural diagram of the central base;

[0032] Figure 7 yes Figure 5 A three-dimensional structural diagram of the heating element;

[0033] Figure 8 yes Figure 5 A three-dimensional structural diagram of the heating element from another angle. Detailed Implementation

[0034] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments are now described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the invention. However, the invention can be practiced in many ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Figure 1An electronic atomizing device 1 according to some embodiments of the present invention is shown. This electronic atomizing device 1 can be used for inhaling aerosols and may include an atomizer 100 and a power supply device 200 electrically connected to the atomizer 100. The power supply device 200 supplies power to the atomizer 100 and controls the opening and closing of the entire electronic atomizing device 1. The atomizer 100 contains a liquid matrix and heats and atomizes the liquid matrix to generate an aerosol after being powered on. The atomizer 100 may be longitudinally positioned above the power supply device 200, and the atomizer 100 and the power supply device 200 may be detachably or non-detachably connected together. The electronic atomizing device 1 may be in the form of a flat cylindrical shape, that is, the width dimension of the electronic atomizing device 1 is greater than its thickness dimension. In some embodiments, the cross-sectional shape of the electronic atomizing device 1 may be a flat shape such as an ellipse, racetrack shape, or rectangle.

[0040] like Figure 2-5 As shown, in some embodiments of the present invention, the atomizer 100 may include an atomizing shell 10 and a heating element 30 housed within the atomizing shell 10. The atomizing shell 10 has a liquid storage chamber 110 for storing a liquid matrix and an outlet channel 120 for outputting aerosols. One end of the atomizing shell 10 has an outlet 121 for outputting aerosols, which communicates with the outlet channel 120. The heating element 30 includes a base 31, an atomizing core 35, and a heating seat 34, wherein the atomizing core 35 is housed in the space formed between the base 31 and the heating seat 34. The atomizing core 35 is in liquid-conducting communication with the liquid storage chamber 110, and is used to adsorb liquid matrix from the liquid storage chamber 110 and heat and atomize the adsorbed liquid matrix to generate aerosols. Furthermore, the atomizing core 35 is also in air-conducting communication with the outlet channel 120 to output the generated aerosols via the outlet channel 120.

[0041] Specifically, the atomizing shell 10 may include a cylindrical shell 11 and an air outlet pipe 12 disposed longitudinally within the shell 11. The shell 11 may be a flat cylindrical shape, and its cross-section may be approximately elliptical, racetrack-shaped, or rectangular, or other narrow and elongated shapes. An annular liquid storage cavity 110 is defined between the inner wall surface of the shell 11 and the outer wall surface of the air outlet pipe 12. An air outlet 121 is formed on the top wall of the shell 11, and the lower end of the shell 11 (the end away from the air outlet 121) is an open end.

[0042] The vent pipe 12 is connected to the inner side of the top wall of the housing 11 and can be coaxially arranged with the housing 11. The inner wall surface of the vent pipe 12 defines the vent channel 120. In this embodiment, the vent pipe 12 and the housing 11 are integrally formed, for example, by injection molding. In other embodiments, the vent pipe 12 and the housing 11 can also be formed separately and then assembled together.

[0043] The atomizing core 35 includes a liquid absorber 351 and a heating element 352 disposed on the liquid absorber 351. The liquid absorber 351 is in liquid-conducting communication with the liquid storage chamber 110, and is used to draw liquid matrix from the liquid storage chamber 110 and conduct the liquid matrix to the heating element 352. The heating element 352 is electrically connected to the power supply device 200, and is used to heat and atomize the liquid matrix adsorbed by the liquid absorber 351 to generate an aerosol after being powered on.

[0044] The liquid absorber 351 can be made of porous absorbent ceramic, absorbent cotton, or other materials with a porous capillary structure. The liquid absorber 351 has an absorbent surface 3511 and a heating surface 3512. The heating surface 3512 is used to house the heating element 352, and the absorbent surface 3511 absorbs the liquid matrix from the liquid storage chamber 110 and conducts the liquid matrix to the heating surface 3512 through the porous capillary structure inside the liquid absorber 351. In this embodiment, the liquid absorber 351 is a porous absorbent ceramic, the absorbent surface 3511 is located on the side of the liquid absorber 351 facing the liquid storage chamber 110, and the heating surface 3512 is located on the side of the liquid absorber 351 away from the liquid storage chamber 110. Specifically, the liquid absorber 351 may include an absorbent body 3513 and two retaining arms 3514 extending laterally outward from both sides of the upper end of the absorbent body 3513. Further, the two retaining arms 3514 may be located on both sides of the absorbent body 3513 along its width direction. The upper end face of the liquid absorber 351 can be recessed to form a groove 3510, making the liquid absorber 351 approximately bowl-shaped. The inner wall of the groove 3510 defines the liquid absorbent surface 3511. The lower end face of the liquid absorber 351 forms a heating surface 3512, that is, the heating element 352 is disposed on the end face of the liquid absorber 351 facing the base 31.

[0045] The base 31 is embedded in the lower end of the housing 11 to cover the open lower end of the housing 11. Furthermore, the base 31 is connected to the heating element 34 to fix the atomizing core 35. In this embodiment, both the base 31 and the heating element 34 can be made of plastic, and the base 31 and the heating element 34 are interlocked together. An atomizing chamber 350 is formed between the base 31 and the heating surface 3512 of the atomizing core 35 for mixing aerosol and air. The atomizing chamber 350 is connected to the air outlet channel 120 to output the mixture of aerosol and air formed in the atomizing chamber 35 through the air outlet channel 120. Further, an air inlet 314 communicating with the atomizing chamber 350 can be formed on the base 31 to allow outside air to enter the atomizing chamber 350 through the air inlet 314.

[0046] like Figure 2-6As shown, in some embodiments, the base 31 may include a plate-shaped seat body 311, a cylindrical sidewall 312 extending upward from the upper end face of the seat body 311, and two support arms 313 extending upward from both sides of the upper end of the cylindrical sidewall 312. Further, the two support arms 313 may be formed by extending longitudinally upward from the upper end faces of both sides of the cylindrical sidewall 312 along its width direction, and may be interlocked with the heating base 34. The cylindrical sidewall 312 is fitted into the lower end opening of the housing 11, and the shape and size of the outer contour of the cross-section of the cylindrical sidewall 312 are adapted to the shape and size of the inner contour of the lower end cross-section of the housing 11. The upper end face of the seat body 311 may abut against the lower end face of the housing 11, and the shape and size of the outer contour of the cross-section of the seat body 311 are adapted to the shape and size of the outer contour of the lower end cross-section of the housing 11.

[0047] The upper end face of the base 311 and the inner wall of the cylindrical sidewall 312 define a liquid storage space 3120, which can store a certain amount of condensate, thereby reducing leakage. An air inlet 314 extends longitudinally through the base 311 and can be located in the cylindrical sidewall 312. The central axis of the air inlet 314 can coincide with the central axes of the base 311 and the cylindrical sidewall 312. The upper end face of the air inlet 314 can be higher than the bottom surface of the liquid storage space 3120, thereby reducing the risk of liquid leakage from the air inlet 314.

[0048] Furthermore, the heating element 30 may also include electrode posts 32 extending longitudinally through the base 31. There are typically two electrode posts 32, each electrically connected to the two poles of the heating element 352. The upper end face of the electrode post 32 is in contact with and conductively connected to the heating element 352, thus the electrode post 32 also serves to support the atomizing core 35. Correspondingly, the base 311 is also provided with two electrode through holes 315 for the two electrode posts 32 to pass through. In this embodiment, the two electrode through holes 315 are located in the cylindrical sidewall 312, and can be longitudinally disposed on both sides of the base 311 along its width. Furthermore, the upper end face of each electrode through hole 315 may be higher than the bottom surface of the liquid storage space 3120, thereby reducing the risk of liquid leakage from the electrode through hole 315.

[0049] In some embodiments, the atomizer 100 may also include a retaining cap 20. The retaining cap 20 is a cylindrical shape with an open top, and may include a bottom wall 211 and cylindrical side walls 212 extending upward from the outer periphery of the bottom wall 211. The retaining cap 20 is fitted over the base 31 and the housing 11 to fix the base 31 within the housing 11. The retaining cap 20 may be made of metal, which exhibits less thermal expansion and contraction with temperature changes, resulting in more stable and reliable connections and better sealing between the components within the atomizer 100. Furthermore, when the atomizer 100 is magnetically connected to the power supply 200, the metal retaining cap 20 can also be used for magnetic connection with the power supply 200.

[0050] The fixing cover 20 can be snapped into the housing 11, thereby fixing the fixing cover 20 to the housing 11. In this embodiment, the lower end of the housing 11 has two buckle portions 111 protruding outward from the outer wall surfaces on both sides along the width direction. The cylindrical side wall 212 of the fixing cover 20 has two slots 2121 corresponding to the two buckle portions 111. The two buckle portions 111 can be snapped into the two slots 2121 respectively, thereby fastening the fixing cover 20 to the housing 11 together.

[0051] Furthermore, in this embodiment, there is a gap between the lower end face of the base 311 and the upper end face of the bottom wall 211 of the fixing cover 20, which forms an airflow channel 310 communicating with the air inlet 314. The lower end face of the base 311 may also extend downward to form a plurality of positioning posts 316, which can abut against the upper end face of the bottom wall 211 to achieve support and positioning of the base 31.

[0052] Furthermore, in some embodiments, an air inlet 2122 communicating with the airflow channel 310 may be formed on the cylindrical sidewall 212 of the fixed cover 20. In this embodiment, there are two air inlets 2122, which are formed by the downward extension of the lower end surfaces of the two slots 2121, respectively. The base 311 has two notches 3111 corresponding to the two air inlets 2122. Specifically, the two notches 3111 can be formed by the transverse inward recess of the outer wall surfaces on both sides of the base 311 along the width direction. The air inlets 2122, notches 3111, airflow channel 310, and air inlet holes 314 are connected in sequence to form an air intake channel for introducing outside air into the atomizing chamber 350.

[0053] In some embodiments, a vent 2111 communicating with the airflow channel 310 may be formed on the bottom wall 211 of the fixed cover 20. In this embodiment, the central axis of the vent 2111 is offset from the central axis of the air inlet 314. In other embodiments, the central axis of the vent 2111 may coincide with the central axis of the air inlet 314. The vent 2111 can be used to connect the airflow channel 310 to the airflow sensor in the power supply device 200. Alternatively, the vent 2111 can also be used as an air inlet for introducing outside air into the airflow channel 310. In this case, the vent 2111, the airflow channel 310, and the air inlet 314 are sequentially connected to form an air inlet channel for introducing outside air into the atomizing chamber 350.

[0054] Understandably, in some other embodiments, the lower end face of the base 31's seat 311 may also contact the upper end face of the bottom wall 211 of the fixing cover 20, that is, no airflow channel 310 is formed between the lower end face of the base 31 and the upper end face of the fixing cover 20. In other embodiments, the fixing cover 20 may not be provided, and the base 31 and the housing 11 may be fixed together by means of snap-fit ​​connection, threaded connection, interference fit connection, etc.

[0055] Furthermore, in some embodiments, the heating assembly 30 may also include a sealing member 33 sleeved on the base 31, a heating sleeve 37 sleeved on the heating seat 34, and a sealing gasket 36 housed in the heating seat 34 and disposed between the heating seat 34 and the liquid absorber 351. The sealing member 33, the heating sleeve 37, and the sealing gasket 36 may all be made of elastic materials such as silicone.

[0056] The sealing element 33 can be sleeved on the cylindrical sidewall 312 of the base 31. The outer wall surface of the sealing element 33 can be interference-fitted with the inner wall surface of the housing 11 to improve the sealing performance. The sealing gasket 36 can be in the shape of an annular sheet. The sealing gasket 36 is tightly pressed between the heating base 34 and the liquid absorber 351, which can play a role in buffering, ensuring sealing performance, and preventing leakage. The heating sleeve 37 is sleeved on the upper part of the heating base 34. The outer wall surface of the heating sleeve 37 can be interference-fitted with the inner wall surface of the housing 11 to improve the sealing performance. The heating sleeve 37 can also have a through hole 370 formed longitudinally. The lower end of the vent pipe 12 can be embedded in the through hole 370, and the outer wall surface of the lower end of the vent pipe 12 is sealed with the hole wall of the through hole 370.

[0057] like Figure 2-5 , Figure 7-8As shown, the heating base 34 is housed within the housing 11 and can be coaxially arranged with the housing 11. A first minimum fit distance D1 is formed between the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 in the width direction of the atomizer 100. It should be noted that the fit between the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 in the width direction can be a clearance fit, a transition fit, or an interference fit. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in a clearance fit in the width direction, the first minimum fit distance D1 is greater than or equal to zero, for example, 0 to 0.1 mm; in this case, the first minimum fit distance D1 is the minimum fit clearance between the outer wall surfaces of the heating base 34 on both sides of the width direction and the inner wall surfaces of the housing 11 on both sides of the width direction. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in an interference fit (or a non-interference fit) in the width direction, the first minimum fit distance D1 is less than or equal to zero, for example, -0.15 to 0 mm; at this time, the absolute value of the first minimum fit distance D1 is the maximum interference between the outer wall surfaces of the heating base 34 and the inner wall surfaces of the housing 11 in the width direction. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in a transition fit in the width direction, the first minimum fit distance D1 can be greater than zero, equal to zero, or less than zero, for example, -0.08 to 0.08 mm.

[0058] In the thickness direction of the atomizer 100, a second minimum fitting distance D2 is formed between the outer wall surface of the heating base 34 and the inner wall surface of the housing 11. It should be noted that in the thickness direction of the atomizer 100, the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 can be a clearance fit, a transition fit, or an interference fit. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in a clearance fit in the thickness direction, the second minimum fitting distance D2 is greater than or equal to zero, for example, 0 to 0.2 mm; in this case, the second minimum fitting distance D2 is the minimum fitting clearance between the outer wall surfaces of the heating base 34 on both sides of the thickness direction and the inner wall surfaces of the housing 11 on both sides of the thickness direction. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in an interference fit (or an interference fit) in the thickness direction, the second minimum fit distance D2 is less than or equal to zero, for example, -0.1 to 0 mm; at this time, the absolute value of the second minimum fit distance D2 is the maximum interference between the outer wall surfaces of the heating base 34 and the inner wall surfaces of the housing 11 along the thickness direction. When the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 are in a transition fit in the thickness direction, the second minimum fit distance D2 can be greater than zero, equal to zero, or less than zero, for example, -0.08 to 0.08 mm.

[0059] Further, in this embodiment, the first minimum fitting distance D1 is smaller than the second minimum fitting distance D2. Preferably, the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 have a transition fit or interference fit in the width direction, and the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 have a clearance fit in the thickness direction. In some embodiments, the first minimum fitting distance D1 can be -0.08 to 0.1 mm, and the second minimum fitting distance D2 can be 0.08 to 0.2 mm. During assembly, the gap between the outer wall surfaces of the heating base 34 on both sides of the width direction and the inner wall surfaces of the housing 11 on both sides of the width direction is very small or even interferes, thereby limiting the inward shrinkage deformation of the housing 11 on both sides of the width direction to be small or to increase due to the interference fit. The gap between the outer wall surfaces of the heating base 34 along the thickness direction and the inner wall surfaces of the housing 11 along the thickness direction is relatively large. Based on the principle that the circumference of the mating surface (inner wall surface) of the housing 11 is fixed, when the housing 11 deforms inward in the width direction, the bulging deformation of the housing 11 along the thickness direction is also small. Even when the dimension of the housing 11 along the width direction increases due to interference fit, the dimension of the housing 11 along the thickness direction also decreases, thus making the bulging deformation of the housing 11 in the thickness direction small or non-bulging. Furthermore, since flat objects have weaker strength in the thickness direction during assembly, resulting in weaker sealing performance in the thickness direction, this embodiment improves the sealing performance between the outer wall surface of the heating base 34 and the inner wall surface of the housing 11 by minimizing or eliminating the bulging deformation of the housing 11 in the thickness direction.

[0060] In some embodiments, the heating element 34 may include a lower body portion 341 and an upper sleeve portion 342. The cross-sectional dimensions of the sleeve portion 342 may be smaller than those of the body portion 341, and the heating sleeve 37 may be fitted onto the sleeve portion 342. Further, the outer wall surfaces on both sides of the body portion 341 along the width direction may respectively extend outward to form limiting portions 3411, and the outer wall surface of the limiting portion 3411 defines a first minimum mating distance D1 between it and the inner wall surface of the housing 11. In this embodiment, the limiting portion 3411 is located at the upper part of the body portion 341 and close to the heating sleeve 37, which can improve the sealing performance between the outer wall surface of the heating sleeve 37 and the inner wall surface of the housing 11.

[0061] The heating base 34 also has at least one liquid inlet channel 340 that connects the liquid absorber 351 to the liquid storage chamber 110. The liquid matrix in the liquid storage chamber 110 can be supplied to the liquid absorber surface 3511 of the liquid absorber 351 through the at least one liquid inlet channel 340. The top surface of the sleeve portion 342 is recessed to form a vent hole 343 that communicates with the lower end of the vent channel 120. Specifically, in this embodiment, the vent hole 343 is coaxially arranged with the heating base 34; there are two liquid inlet channels 340, which can be formed by extending downward from the top surface of the sleeve portion 342 and can be located on both sides of the vent hole 343 along the width direction.

[0062] A receiving cavity 3410 for accommodating the atomizing core 35 is recessed on the bottom surface of the main body 341. The two retaining arms 3514 of the atomizing core 35 abut against the cavity wall of the receiving cavity 3410 to achieve installation and positioning of the atomizing core 35 within the receiving cavity 3410. The other outer wall surfaces of the atomizing core 35 may not contact the cavity wall of the receiving cavity 3410 to reduce the direct contact area between the atomizing core 35 and the heating base 34, thereby reducing heat transfer from the atomizing core 35 to the heating base 34 and reducing high-temperature deformation of the housing 11. Furthermore, the two side walls of the receiving cavity 3410 that contact the two retaining arms 3514 may also be recessed to form several heat-insulating grooves 3412 to further reduce the direct contact area between the atomizing core 35 and the heating base 34.

[0063] In some embodiments, at least one vent 3415 communicating with the lower end of the vent 343 may be formed on the upper sidewall of the body portion 341, and at least one air guide port 3413 communicating with the atomizing chamber 350 and the air outlet channel 120 may be formed on the lower sidewall of the body portion 341. Specifically, in this embodiment, there are two vents 3415, which are respectively disposed on both sides of the upper end of the body portion 341 along the thickness direction; there are also two air guide ports 3413, which are respectively disposed on both sides of the lower end of the body portion 341 along the thickness direction.

[0064] Furthermore, in some embodiments, at least one air guide channel 345 may be formed on the side wall of the heating base 34, connecting the at least one air guide port 3413 to at least one air vent 3415. In this embodiment, there are two air guide channels 345, which are respectively formed by the indentation of the outer wall surface on both sides of the heating base 34 along the thickness direction, and the two air guide channels 345 may be arranged in a rotationally symmetrical manner with respect to the central axis of the heating base 34. The air guide channel 345 may be a groove structure and may have a certain extension length, thereby storing a certain amount of leakage liquid. Specifically, each air guide channel 345 may include a plurality of first air guide grooves 3451 extending laterally and a plurality of second air guide grooves 3452 extending longitudinally. The lateral end of the lowermost first air guide groove 3451 may be connected to the air guide port 3413. The lower end of the second air guide groove 3452 can be connected to the uppermost first air guide groove 3451, and the upper end of the second air guide groove 3452 can be connected to the air vent 3415.

[0065] Furthermore, in some embodiments, a plurality of openings 3414 may be formed on the sidewall of the heating base 34 to expose a portion of the side of the liquid-absorbing 351. When the airflow flows through these openings 3414, it can carry away some of the heat from the atomizing core 35, thereby cooling the atomizing core 35. In this embodiment, a plurality of openings 3414 are formed on both sides of the heating base 34 along the thickness direction. Specifically, two openings 3414 are provided on each side of the heating base 34 along the thickness direction, and these two openings 3414 are arranged side by side laterally above the air guide port 3413.

[0066] Furthermore, the first air guide groove 3451 and the second air guide groove 3452 can also be connected to the plurality of openings 3414, thereby connecting the first air guide groove 3451 and the second air guide groove 3452 to the liquid suction 351. When the first air guide groove 3451 and the second air guide groove 3452 store leaked liquid, the leaked liquid can be sucked onto the liquid suction 351 through the openings 3414, reducing the risk of leaked liquid leaking into the power supply device 200.

[0067] Understandably, the above-mentioned technical features can be used in any combination without restriction.

[0068] The above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An atomizer, characterized in that, The atomizer (100) includes a housing (11) with a liquid storage chamber (110) inside and a heating base (34) housed in the housing (11). In the width direction of the atomizer (100), a first minimum mating distance (D1) is formed between the outer wall surface of the heating base (34) and the inner wall surface of the housing (11). In the thickness direction of the atomizer (100), a second minimum mating distance (D2) is formed between the outer wall surface of the heating base (34) and the inner wall surface of the housing (11). The first minimum mating distance (D1) is greater than zero, equal to zero, or less than zero, and the second minimum mating distance (D2) is greater than zero, equal to zero, or less than zero. The first minimum mating distance (D1) is less than the second minimum mating distance (D2).

2. The atomizer according to claim 1, characterized in that, In the width direction of the atomizer (100), the outer wall surface of the heating base (34) and the inner wall surface of the housing (11) are in clearance fit, transition fit or interference fit.

3. The atomizer according to claim 1, characterized in that, In the thickness direction of the atomizer (100), the outer wall surface of the heating base (34) and the inner wall surface of the housing (11) are in clearance fit.

4. The atomizer according to claim 1, characterized in that, The first minimum mating distance (D1) is -0.08~0.1mm.

5. The atomizer according to claim 1, characterized in that, The second minimum mating distance (D2) is 0.08~0.2mm.

6. The atomizer according to claim 1, characterized in that, The shell (11) is a flat cylindrical shape.

7. The atomizer according to claim 1, characterized in that, The heating base (34) includes a body portion (341) and a sleeve portion (342) extending from the body portion (341) toward the liquid storage cavity (110).

8. The atomizer according to claim 7, characterized in that, The outer wall surfaces of the main body (341) extend outward along both sides of the width direction to form a limiting part (3411), and the outer wall surface of the limiting part (3411) and the inner wall surface of the housing (11) define the first minimum mating distance (D1).

9. The atomizer according to claim 8, characterized in that, The limiting part (3411) is disposed near the socket part (342).

10. The atomizer according to claim 7, characterized in that, The cross-sectional dimensions of the sleeve portion (342) are smaller than those of the body portion (341).

11. The atomizer according to claim 7, characterized in that, The atomizer (100) also includes a heating sleeve (37) housed in the housing (11) and fitted onto the sleeve portion (342).

12. The atomizer according to any one of claims 1-11, characterized in that, The atomizer (100) also includes an atomizing core (35). The heating base (34) has a receiving cavity (3410) for receiving the atomizing core (35) at one end away from the liquid storage cavity (110). An air outlet channel (120) communicating with the air guide of the atomizing core (35) is also formed in the housing (11).

13. The atomizer according to claim 12, characterized in that, The atomizing core (35) includes a liquid absorber (351) that is in liquid-conducting communication with the liquid storage chamber (110). The liquid absorber (351) includes a liquid absorber body (3513) and two retaining arms (3514) that extend outward from both sides of the liquid absorber body (3513) in the width direction. The liquid absorber (351) abuts against the cavity wall of the receiving cavity (3410) through the two retaining arms (3514).

14. The atomizer according to claim 13, characterized in that, The receiving cavity (3410) has several heat insulation grooves (3412) formed by recesses on both sides of the cavity wall that are in contact with the two retaining arms (3514).

15. The atomizer according to claim 12, characterized in that, The heating base (34) has two concave air channels (345) on the outer wall surfaces on both sides along the thickness direction. Each air channel (345) is connected to the receiving cavity (3410) and the air outlet channel (120).

16. The atomizer according to claim 15, characterized in that, Each of the air guide channels (345) includes a plurality of first air guide grooves (3451) extending laterally and a plurality of second air guide grooves (3452) extending longitudinally.

17. The atomizer according to claim 15, characterized in that, The heating base (34) has several openings (3414) on its sidewalls along the thickness direction, so that part of the side of the atomizing core (35) is exposed.

18. The atomizer according to claim 17, characterized in that, Each of the air passages (345) is connected to at least one of the openings (3414).

19. The atomizer according to claim 12, characterized in that, The atomizer (100) also includes a base (31) disposed at one end of the housing (11); the base (31) is connected to the heating base (34) to accommodate and fix the atomizing core (35).

20. An electronic atomizing device, characterized in that, It includes the atomizer (100) according to any one of claims 1-19 and the power supply device (200) electrically connected to the atomizer (100).

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