CN218571409U - Electronic atomization device and atomizer thereof - Google Patents

Abstract

The utility model relates to an electronic atomization device and atomizer thereof, the atomizer includes that inside is formed with the shell in stock solution chamber, wears to locate breather pipe in the shell, set up in the breather pipe and with the atomization component of stock solution chamber drain intercommunication and set up in the base of the one end of shell. The base comprises an embedding part embedded in the shell, the embedding part comprises a body part and a sealing part, the outer wall surface of the body part is in clearance fit with the inner wall surface of the shell, and the outer wall surface of the sealing part is in interference fit with the inner wall surface of the shell. The assembling force required when the base is assembled into the shell is reduced through the clearance fit between the body part and the shell; through the interference fit between sealing part and the shell, improve the sealed of stock solution chamber, reduce the weeping in stock solution chamber.

Description

Electronic atomization device and atomizer thereof

Technical Field

The utility model relates to an atomizing field, more specifically say, relate to an electronic atomization device and atomizer thereof.

Background

Electronic atomization devices are used to heat atomize an aerosolizable liquid substrate to generate an absorbable aerosol. The electronic atomizer generally includes an atomizer for receiving a liquid substrate and heating and atomizing the liquid substrate after being electrified, and a power supply device for supplying power to the atomizer.

A nebulizer generally includes a housing and a base sealed at one end of the housing. In order to facilitate the assembly of the base into the housing, the dimensions of the base cannot easily be designed large. In this way, leakage of the liquid medium in the housing from the fitting between the base and the housing is easily caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the present invention is to provide an improved atomizer and an electronic atomizer having the same, which are directed to the above-mentioned defects of the prior art.

The utility model provides a technical scheme that its technical problem adopted is: constructing an atomizer which comprises a shell, a vent pipe, an atomization assembly and a base, wherein a liquid storage cavity is formed in the shell, the vent pipe penetrates through the shell, the atomization assembly is arranged in the vent pipe and is communicated with liquid guide of the liquid storage cavity, and the base is arranged at one end of the shell;

the base comprises an embedding part embedded in the shell, the embedding part comprises a body part and a sealing part, the outer wall surface of the body part is in clearance fit with the inner wall surface of the shell, and the outer wall surface of the sealing part is in interference fit with the inner wall surface of the shell.

In some embodiments, the sealing portion is annular and is located at one end of the embedding portion close to the liquid storage cavity.

In some embodiments, the outer wall surface of the sealing part near one end of the liquid storage cavity is provided with a guide inclined surface.

In some embodiments, the sealing portion is integrally formed by extending outward from an outer wall surface of the embedding portion.

In some embodiments, the atomizer further comprises a sealing sleeve sleeved on the embedding part, and the sealing part is in interference fit with the inner wall surface of the shell through the sealing sleeve.

In some embodiments, the axial length of the body portion is greater than the axial length of the sealing portion.

In some embodiments, the embedding portion further includes a connecting portion, and the sealing portion and the connecting portion are respectively located at two ends of the body portion.

In some embodiments, the outer wall surface of the connecting portion is an interference fit, a transition fit, or a clearance fit with the inner wall surface of the housing.

In some embodiments, one end of the air vent pipe is embedded in the base.

The utility model also provides an electronic atomization device, include as above-mentioned arbitrary atomizer.

Implement the utility model discloses following beneficial effect has at least: the body part is in clearance fit with the shell, so that the assembly force required when the base is assembled in the shell can be reduced; the sealing part is in interference fit with the shell, the sealing effect is improved through the interference fit, and leakage of the liquid storage cavity is reduced.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic perspective view of an electronic atomizing device according to a first embodiment of the present invention;

FIG. 2 is a schematic view of an exploded structure of the electronic atomizer shown in FIG. 1;

FIG. 3 is a schematic longitudinal cross-sectional view of the atomizer of FIG. 2;

FIG. 4 is an exploded view in longitudinal section of the atomizer shown in FIG. 3;

FIG. 5 is an exploded view of the reservoir atomizing body of FIG. 4;

FIG. 6 is a schematic view in partial longitudinal section of the atomizer shown in FIG. 3;

fig. 7 is a schematic longitudinal sectional view of an atomizer according to a second embodiment of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "width", "thickness", "front", "back", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings or the position or positional relationship which the product of the present invention is conventionally placed when in use, and are only for convenience of describing the present invention and simplifying the description, but 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 thus, should not be construed as limiting the present invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "over" a second feature may be directly or diagonally over the first feature or may simply mean that the first feature is at a higher level than the second feature. A first feature "under" a second feature may be that the first feature is directly under or obliquely under the second feature, or simply means that the first feature is at a lesser elevation than the second feature.

Fig. 1-2 show an electronic atomizer 1 according to a first embodiment of the present invention, where the electronic atomizer 1 includes an atomizer 100 and a power supply device 200 cooperatively connected with the atomizer 100. The power supply device 200 is used to supply power to the atomizer 100 and control the whole electronic atomization device 1 to be turned on and off, and the like, and the atomizer 100 is used to receive a liquid substrate and heat and atomize the liquid substrate after being powered on to generate aerosol. In some embodiments, the atomizer 100 and the power supply device 200 may each be substantially cylindrical, and both may be mechanically and electrically connected together in the axial direction. Further, the atomizer 100 and the power supply device 200 may be detachably connected by means of a screw connection. It is understood that, in other embodiments, the nebulizer 100 and the power supply device 200 may be connected together in other detachable manners, such as a magnetic attraction connection, a snap connection, or the nebulizer 100 and the power supply device 200 may be connected together in a non-detachable manner. Further, the cross-sectional shape of the atomizer 100 and/or the power supply apparatus 200 is not limited to a circular shape, and may be other shapes such as an oval shape, a racetrack shape, and a rectangular shape.

As shown in fig. 3-6, the atomizer 100 may include a liquid-storing atomizing body 10 and a nozzle body 20 disposed at an upper end of the liquid-storing atomizing body 10. A reservoir chamber 110 for holding a liquid substrate and an output channel 120 isolated from the reservoir chamber 110 for delivering an aerosol are formed in the reservoir atomizing body 10. The nozzle body 20 is closed at the upper end of the reservoir 110, and has a suction passage 210 formed therein to communicate with the output passage 120.

Specifically, the nozzle body 20 may include the nozzle 21, and the suction passage 210 may be formed in the longitudinal direction within the nozzle 21 and may be disposed coaxially with the nozzle 21. In some embodiments, the suction nozzle 21 may be made of a hard material such as plastic, which is beneficial to the structural stability of the suction channel 210. Further, the suction nozzle 21 may include a blocking portion 211 at a lower portion and a suction nozzle portion 212 at an upper portion. The mouthpiece portion 212 may have a flat shape, which may better fit the lips, and may enable the smoke to be more concentrated and the suction experience to be better. The sealing part 211 is embedded in the upper opening of the liquid storage atomizing main body 10 to seal and seal the upper end of the liquid storage cavity 110. In some embodiments, the nozzle body 20 can further include a seal 22 that is positioned over the blocking portion 211. The sealing member 22 may be made of an elastic material such as silicone, and the sealing member 22 is sealingly disposed between an outer wall surface of the blocking portion 211 and an upper end wall surface of the reservoir 110.

In some embodiments, the nozzle body 20 can be detachably connected to the upper end of the reservoir atomization body 10, and on one hand, the liquid matrix can be added to the reservoir 110 by detaching the nozzle body 20 from the reservoir atomization body 10, so as to prolong the service life of the atomizer 100; on the other hand, the parts of the nozzle body 20 and/or the liquid storage and atomization body 10 can be replaced independently, so that the cost is reduced. In other embodiments, the nozzle body 20 and the reservoir atomizing body 10 can be connected together in a non-detachable manner.

The reservoir atomizing body 10 may include a housing 11, a vent tube 12, an atomizing assembly 13, an electrode post 15, and a base 16. The vent tube 12 is disposed longitudinally in the housing 11 and may be disposed coaxially with the housing 11. The vent pipe 12 may be tubular, with an inner wall surface of the vent pipe 12 defining an outlet passage 120, and an annular reservoir 110 defined between an outer wall surface of the vent pipe 12 and an inner wall surface of the housing 11. The upper end of the vent tube 12 may be embedded in the nozzle body 20, and specifically, the upper end of the vent tube 12 may pass through the seal 22 and be embedded in the nozzle 21. Wherein the sealing member 22 is used for sealing and wrapping the vent pipe 12, and the suction nozzle 21 is used for ensuring the reliability of the connection between the vent pipe 12 and the suction nozzle main body 20.

The atomizing assembly 13 is accommodated in the vent pipe 12 and may be disposed coaxially with the vent pipe 12. The atomizing assembly 13 includes a liquid absorber 131 and a heat generating body 132 in contact with the liquid absorber 131. The wicking fluid 131 is in fluid communication with the reservoir 110 for wicking the liquid matrix from the reservoir 110 and conducting the liquid matrix to the heater 132. Specifically, in this embodiment, the liquid absorbent 131 is a porous ceramic that is capable of absorbing liquid matrix from the reservoir 110 by infiltration and capillary action of its internal microporous structure. The liquid absorbent 131 may be cylindrical, and an atomizing chamber 1310 is formed therein and penetrates in the longitudinal direction. The nebulizing chamber 1310 communicates with the lower end of the output channel 120 and may be disposed coaxially with the output channel 120. It is understood that in other embodiments, the liquid absorbent 131 is not limited to porous ceramic materials, and other porous materials may be used.

The heating element 132 may be a heating film, which may be formed on the blank of the liquid-absorbing body 131 by silk-screen printing, printing or spraying, and then sintered with the liquid-absorbing body 131; alternatively, the heating element 132 may be a separately formed metal heating sheet or a metal heating wire. The heating element 132 includes at least one heating trace 1321, and the at least one heating trace 1321 may be provided on an inner wall surface of the liquid absorbent 131 to generate heat after being energized, thereby heating and atomizing the liquid substrate adsorbed by the liquid absorbent 131. In this embodiment, the heating element 132 includes three heating traces 1321 connected in parallel, and the three heating traces 1321 are uniformly spaced along the circumferential direction of the liquid absorbing body 131, so as to facilitate uniform heating of the liquid substrate absorbed by the liquid absorbing body 131. Each of the heat emitting traces 1321 extends in a non-linear manner, for example, in a curved or zigzag manner in the axial direction of the heat emitting element 132, which is advantageous for increasing the heating area of the heat emitting trace 1321. It is understood that in other embodiments, heat emitting trace 1321 may be one, two, or more than three in number, and/or heat emitting trace 1321 may also extend along a straight line.

In some embodiments, the atomizing assembly 13 may further include a wicking cotton 133 that is sleeved outside the liquid 131 and contacts the liquid 131. After the liquid matrix in the liquid storage cavity 110 is absorbed by the drainage cotton 133 and distributed in the drainage cotton 133, the liquid matrix is conducted to the liquid absorption body 131, so that the drainage speed is higher, and the drainage is more uniform.

The base 16 is at least partially embedded in the lower opening of the housing 11 and seals the lower end of the reservoir 110. The electrode column 15 is longitudinally disposed through the base 16 and is electrically insulated from the base 16. In some embodiments, both the base 16 and the vent tube 12 may be electrically conductive. One pole of the heater 132 may be electrically connected to the vent tube 12, and thus the base 16, directly or indirectly. The other pole of the heating element 132 may be electrically connected to the electrode post 15 directly or indirectly.

In this embodiment, the heating element 132 further includes two end- face electrodes 1322, 1323 and two connection electrodes 1324, 1325. The upper and lower ends of the heating trace 1321 are connected to the two end- face electrodes 1322 and 1323 through the two connection electrodes 1324 and 1325, respectively, and the heating trace 1321 may be externally connected to a power supply through the two connection electrodes 1324 and 1325 or the two end- face electrodes 1322 and 1323. The two connection electrodes 1324 and 1325 are provided on the upper and lower ends of the inner wall surface of the liquid-absorbent 131, respectively, and may be cylindrical. The two end- face electrodes 1322, 1323 are respectively disposed on the upper and lower end faces of the liquid absorber 131, and may be in the form of circular ring-shaped sheets. It is to be understood that in other embodiments, the heat-generating body 132 may not include the two connection electrodes 1324, 1325, or the heat-generating body 132 may not include the two end- face electrodes 1322, 1323.

The vent pipe 12 may be integrally formed of a metal material, and may include a first pipe segment 121 and a second pipe segment 122 connected to a lower end of the first pipe segment 121, wherein an inner diameter and an outer diameter of the first pipe segment 121 are smaller than an inner diameter and an outer diameter of the second pipe segment 122. The outer diameter of the first tube segment 121 is small so that the reservoir chamber 110 formed between the outer wall surface of the first tube segment 121 and the inner wall surface of the housing 11 has a large reservoir space. The lower end of the second pipe section 122 is embedded in the base 16, and the outer wall surface of the second pipe section 122 is in contact with and in communication with the inner wall surface of the base 16. The upper end of the second pipe segment 122 has an electrically conductive end surface 1221, and the electrically conductive end surface 1221 is directly abutted and conducted with the end surface electrode 1322. It will be appreciated that in other embodiments, the vent tube 12 and/or the base 16 may be made of conductive or insulating material and then coated with a conductive layer at the desired conductive location to achieve the conductive function.

Atomizing assembly 13 is received in second tube segment 122. At least one inlet 1220 is disposed on a sidewall of the second tube segment 122 such that the liquid substrate in the reservoir 110 can flow into the atomizing assembly 13 through the at least one inlet 1220. In this embodiment, there are a plurality of liquid inlets 1220, and the liquid inlets 1220 are uniformly spaced along the circumference of the second pipe section 122, so as to facilitate uniform and sufficient liquid supply to the atomizing assembly 13.

In some embodiments, a portion of the sidewall of the second tube segment 122 grips the liquid guide cotton 133 to secure the atomizing assembly 13, and another portion of the sidewall of the second tube segment 122 is not in contact or loose contact with the liquid guide cotton 133. Specifically, the second pipe segment 122 includes a clamped segment 1223 and an undamped segment 1224. The inner wall surface of the unclamping section 1224 is in loose contact or no contact with the outer wall surface of the liquid guide cotton 133. The non-clamping section 1224 is located at a lower portion of the second tube segment 122 to facilitate loading of the atomizing assembly 13 into the second tube segment 122 from a lower end opening of the non-clamping section 1224. Specifically, a transition fit or clearance fit may be employed between non-clamping section 1224 and wicking cotton 133. The unclamped section 1224 has a straight cylindrical shape, i.e., the inside diameter, outside diameter, and thickness of the unclamped section 1224 remain constant from the lower end to the upper end. The lower part of the liquid guide cotton 133 is fluffy because of not being clamped, so that the liquid guide cotton has a good liquid guide function. An inlet port 1220 may be open on the non-clamping section 1224.

The lower end of the clamping section 1223 is connected to the upper end of the non-clamping section 1224, and the upper end of the clamping section 1223 is connected to the first pipe section 121. The inner wall surface of the clamping section 1223 is in close contact with the outer wall surface of the liquid guide cotton 133 through interference fit, so that the atomization assembly 13 can be clamped and fixed on one hand, and liquid leakage is reduced through sealing between the inner wall surface of the clamping section 1223 and the outer wall surface of the liquid guide cotton 133 on the other hand. In addition, since the clamping section 1223 is located at the upper portion of the second pipe section 122, which is approximately corresponding to the upper non-high temperature region of the atomizing assembly 13, even if the upper portion of the liquid guiding cotton 133 is compact due to being clamped and has poor liquid guiding performance, dry burning will not be caused. The non-high temperature region of the atomizing assembly 13 refers to the axial region where the connecting electrodes 1324 and 1325 are located and the axial region where the heat generating traces 1321 are sparsely distributed.

Further, in the present embodiment, the thickness of the clamping section 1223 gradually increases from bottom to top. The outer diameter of the clamping section 1223 remains constant from the lower end to the upper end and is equal to the outer diameter of the non-clamping section 1224. The inner diameter of the clamping section 1223 is gradually reduced from the lower end to the upper end, so that the inner wall surface of the clamping section 1223 is a slope and has a guiding function. The inner diameter of the lower end of the clamping section 1223 is consistent with the inner diameter of the non-clamping section 1224, so that the clamping section 1223 is smoothly transited to the non-clamping section 1224, and the loading of the liquid guide cotton 133 is facilitated. In some embodiments, the minimum inner diameter of the clamping section 1223 (i.e., the upper end inner diameter) may be 0.05-0.2 mm smaller than the inner diameter of the non-clamping section 1224.

In some embodiments, the electrode column 15 is electrically connected to the end face electrode 1323 by an electrically conductive connection 14. The electrode column 15 has a conductive end surface 1511, and the conductive connecting member 14 is disposed between the conductive end surface 1511 and the end surface electrode 1323. The conductive connecting element 14 may include a main body 141 and at least one elastic arm 142 connected to the main body 141, and the at least one elastic arm 142 may be in elastic contact with the conductive end surface 1511 or the end surface electrode 1323. The conductive connecting member 14 can generate a certain elastic deformation in the longitudinal direction, so that the atomizing assembly 13 can generate a certain elastic floating in the longitudinal direction, and thus when the consistency of the product is not good, a reliable electrical connection is still formed between the conductive end surface 1511 and the end surface electrode 1323. In addition, since the conductive connecting member 14 has elasticity, it is possible to prevent the porous ceramic from crushing the liquid absorbent at the time of mounting.

Specifically, in the present embodiment, the outer wall surface of the electrode column 15 is formed with an annular flange 1512 protruding outward, and the upper end surface of the flange 1512 forms the conductive end surface 1511. The central portion of the top surface of the electrode post 15 may extend downward to form a central hole 150, and the central hole 150 is located at the lower portion of the atomizing chamber 1310 and can receive and contain a certain amount of leaking liquid or condensed liquid. The lower end of the central hole 150 has a bottom wall 153, and the bottom wall 153 seals the lower end of the central hole 150 to prevent leakage of liquid or condensate in the central hole 150 to the outside. An annular air passage gap 156 is formed between the outer wall surface of the electrode column 15 and the inner wall surface of the base 16, so that the electrode column 14 and the base 16 are electrically insulated from each other, and the air passage gap 156 also serves to allow air flow.

Further, the upper end surface of the electrode column 15 is spaced from the lower end surface of the atomizing assembly 13, and the spacing serves as heat insulation and air flow communication. On one hand, the space can prevent the atomizing assembly 13 from directly contacting the electrode column 15, and heat of the atomizing assembly 13 is prevented from being directly transferred to the electrode column 15, so that heat insulation is facilitated. On the other hand, the spacing also serves to communicate the vent gap 156 with the aerosolizing chamber 1310.

The conductive connecting member 14 can be integrally formed by using a metal material such as phosphor copper or 316 stainless steel. The surface of the conductive connection member 14 may be further provided with a plating layer such as gold plating or silver plating to improve its conductivity. The main body 141 is cylindrical and is sleeved on the upper portion of the electrode column 15, the lower end of the main body 141 abuts against the conductive end surface 1511 and is in contact conduction with the conductive end surface 1511, and the inner wall surface of the main body 141 is in contact conduction with the outer wall surface of the electrode column 15, so that the conductive connecting piece 14 is fixed on the electrode column 15 more firmly, and the electrical connection between the conductive connecting piece 14 and the electrode column 15 is more reliable. The bottom of the main body 141 may further be formed with a flared structure 143, and the diameter of the flared structure 143 is gradually reduced from bottom to top, so that the main body 141 can be conveniently sleeved on the electrode column 15. In addition, the outer side surface of the upper end of the electrode column 15 may also be formed with a guide slope so that the main body 141 is fitted over the electrode column 15.

Preferably, there are a plurality of elastic arms 142, the plurality of elastic arms 142 are uniformly spaced along the circumference of the main body 141, and each elastic arm 142 includes a conducting portion 145 for elastically abutting against and conducting with the end-face electrode 1323, and a connecting arm 144 for connecting the conducting portion 145 and the main body 141. In some embodiments, the number of the elastic arms 142 may be 2 to 4, which can ensure the width of the elastic arms 142 to make the elastic arms 142 contact and conduct with the end-face electrode 1323 more stably, and can meet the requirement of the manufacturing process to facilitate manufacturing. Specifically, in the present embodiment, the number of the elastic arms 142 is two.

Further, in the present embodiment, the connecting arm 144 has a sheet shape and good elasticity, and may extend from the top surface of the main body 141 upward and obliquely toward the center of the main body 141. The conducting part 145 may have a substantially spoon-shaped structure, and may be formed by bending an end of the connecting arm 144 away from the main body 141 toward the inside of the main body 141, that is, the spoon mouth faces the inside of the main body 141. The inclined plane of the spoon-shaped structure has a guiding function, and the bottom of the spoon is an arc surface, so that the spoon can be better contacted with the end face electrode 1323. It will be appreciated that in other embodiments, the connecting arm 144 may also be inclined away from the center of the body portion 141, and/or the scoop of the conduit 145 may also be directed outwardly of the body portion 141.

It will be appreciated that in other embodiments, the conductive end surface 1511 may be formed on the upper end surface of the electrode shaft 15. In another embodiment, the body 141 may be in contact with the end surface electrode 1323 and electrically connected, and the elastic arm 142 may be in elastic contact with the conductive end surface 1511 and electrically connected.

In some embodiments, the base 16 may be integrally formed of a metal material and may be fixed in the housing 11 by riveting or the like. The susceptor 16 may include a base portion 161, an embedding portion 162 extending upward from an upper end surface of the base portion 161, and an abutting portion 163 extending downward from a lower end surface of the base portion 161. The base 161 may have a cylindrical shape, an upper end surface of the base 161 may abut against a lower end surface of the housing 11, and an outer diameter of the base 161 may coincide with an outer diameter of a lower end of the housing 11. The abutting portion 163 may have a cylindrical shape, and an outer wall surface of the abutting portion 163 is provided with a screw structure for screw connection with the power supply device 200. The outer diameter of the interface 163 may be smaller than the outer diameter of the base 161. At least one air inlet hole 1630 may be further disposed on the sidewall of the upper portion of the abutting portion 163, where the threaded structure is not disposed, and the external air may enter the atomizing chamber 1310 through the air inlet hole 1630 and the ventilation gap 156 in sequence. In this embodiment, there are a plurality of air inlet holes 1630, and the plurality of air inlet holes 1630 are uniformly distributed along the circumferential direction of the abutting portion 163.

The embedding part 162 may be cylindrical and embedded in the lower portion of the housing 11, and at least a part of the outer peripheral surface of the embedding part 162 is in sealing fit with the inner wall surface of the housing 11 to seal the lower end of the reservoir 110. Specifically, in the present embodiment, the embedding portion 162 may include a body portion 1621 and a sealing portion 1622 extending outwardly from the body portion 1621. The outer wall surface of the body portion 1621 may be clearance fitted with the inner wall surface of the housing 11, and the body portion 1621 has a long length in the axial direction, which may reduce the assembling force required when the susceptor 16 is fitted into the housing 11. The sealing portion 1622 is in interference fit with the inner wall surface of the housing 11, and the sealing effect is enhanced by the interference fit. The sealing portion 1622 has a short axial length to reduce the force required to assemble the base 16 into the housing 11 while ensuring sealability. In addition, the sealing part 1622 may be located at the top of the body part 1621 or near the top of the body part 1621, so that less liquid matrix may penetrate between the outer wall surface of the embedding part 162 and the inner wall surface of the housing 11, and the leakage prevention effect may be better. The upper end of the sealing portion 1622 may further be formed with a guide slope 1623, an outer diameter of the guide slope 1623 is gradually reduced from bottom to top, and the outer diameter of the upper end of the guide slope 1623 is smaller than the inner diameter of the housing 11, so that the sealing portion 1622 may be conveniently guided into the housing 11. It will be appreciated that in other embodiments, the outer wall surface of the body portion 1621 may also transition fit with the inner wall surface of the housing 11. In other embodiments, the sealing portion 1622 may also be located in the middle or lower portion of the body portion 1621.

Further, the insertion portion 162 may further include a connection portion 1624 connected to a lower end of the body portion 1621. The outer wall surface of the connecting portion 1624 can be in interference fit with the inner wall surface of the housing 11, which can further improve the liquid leakage prevention effect, and can further secure the fixing of the embedding portion 162 in the housing 11. Further, since the embedding portion 162 is located at the opening of the housing 11, it has a small influence on the assembling force required when the base 16 is fitted into the housing 11. It will be appreciated that in other embodiments, a transition fit or a clearance fit may be used between the outer wall surface of the connecting portion 1624 and the inner wall surface of the housing 11.

In some embodiments, an insulating space 1610 may be further formed on the base 16, and the insulating space 1610 may perform an insulating function, so as to reduce heat transferred from the base 16 to the outside and reduce heat loss. In the present embodiment, the thermal insulation space 1610 is a circular ring-shaped groove formed by an outer circumferential surface of the base 161 being depressed inward in the radial direction. Since the outer diameter of the base 161 is the largest, the heat insulation space 1610 is provided on the base 161, so that the heat insulation space 1610 has a large volume, which improves the heat insulation effect, and reduces the amount of heat transferred to the abutting portion 163, thereby reducing the amount of heat transferred to the power supply device 200. It is understood that in other embodiments, the insulation space 1610 may have other shapes, such as a petal shape arranged at intervals. In other embodiments, the insulation space 1610 may also be formed in whole or in part on the embedding portion 162 or the abutting portion 163. In addition, the thermal insulation space 1610 may be filled with thermal insulation material to further improve the thermal insulation effect.

In some embodiments, the liquid storage atomizing body 10 may further include a fixing sleeve 17, and the fixing sleeve 17 is cylindrical and is disposed at the lower end of the housing 11 and outside the base 161 to enhance the fixing between the housing 11 and the base 16 and to seal the heat insulation space 1610.

In some embodiments, the electrode shaft 15 and the base 16 may be connected in an insulating and sealing manner by an insulating sleeve 18. Specifically, the insulating sleeve 18 may be made of an insulating material such as silicon rubber or plastic, the insulating sleeve 18 is longitudinally disposed in the abutting portion 163, the electrode column 15 is longitudinally disposed in the insulating sleeve 18, and the lower end surface of the flange 1512 may abut against the upper end surface of the insulating sleeve 18. A through hole 180 is formed on the insulating sleeve 18 along the longitudinal direction in a penetrating manner, and the electrode column 15 is arranged in the through hole 180 in a penetrating manner. One side of the insulation sleeve 18 in the circumferential direction is formed with a side opening 181, and the side opening 181 penetrates through the upper and lower ends of the insulation sleeve 18 and penetrates the inside and outside of the insulation sleeve 18 to facilitate the assembly of the electrode column 15 into the insulation sleeve 18.

Further, at least one air passage 182 may be formed in the insulating sleeve 18, and the at least one air passage 182 communicates the air gap 156 with the outside. In one embodiment, the air passage 182 can be used for air intake, i.e., for the external air to enter the air gap 156, and the air intake holes 1630 may or may not be provided on the base 16. In another embodiment, the air passage 182 may be used to communicate the air gap 156 with an airflow sensor in the power supply device 200, so that the power supply device 200 can be activated to power the nebulizer 100 via the airflow sensor during a puff.

In this embodiment, the air passages 182 are plural and uniformly spaced along the circumference of the insulating sheath 18. Each of the air passages 182 includes an air vent 1821 formed in an upper end surface of the insulating bush 18 and an air groove 1822 communicating with the air vent 1821 and formed in an inner wall surface of the insulating bush 18 in a longitudinal direction. It is understood that in other embodiments, the air passage 182 may be formed on the outer wall of the insulating sleeve 18. In other embodiments, the air passage 182 may also extend in a non-linear shape, such as a spiral shape, an S shape, a zigzag shape, or the like.

Fig. 7 shows an atomizer 100 according to a second exemplary embodiment of the present invention, which differs from the first exemplary embodiment described above in that, in the present exemplary embodiment, a sealing connection is provided between the base 16 and the housing 11 by means of a sealing sleeve 19.

Specifically, the base 16 includes an embedding portion 162 embedded in the housing 11, and the embedding portion 162 includes a body portion 1621 and a sealing portion 1622 extending upward from an upper end of the body portion 1621. The outer wall surface of the body portion 1621 may be clearance fitted with the inner wall surface of the housing 11, and the body portion 1621 has a long length in the axial direction, which may reduce the assembling force required when the base 16 is fitted into the housing 11. The outer diameter of the sealing portion 1622 is smaller than the outer diameter of the body portion 1621 and smaller than the inner diameter of the housing 11, so that an annular sealing space is formed between the outer wall surface of the sealing portion 1622 and the inner wall surface of the housing 11. The sealing sleeve 19 is at least partially sealingly disposed in the sealed space, thereby sealing between the outer wall surface of the sealing portion 1622 and the inner wall surface of the housing 11.

Boot seal 19 may be formed of a resilient material such as silicone, and may include a first annular wall 191, a second annular wall 192, and a top wall 193. The first annular wall 191 is sealingly disposed between an outer wall surface of the sealing portion 1622 and an inner wall surface of the housing 11, and the outer wall surface of the first annular wall 191 may be in interference fit with the inner wall surface of the housing 11 to improve the sealing effect. The second annular wall 192 has an outer diameter smaller than an inner diameter of the first annular wall 191, and a top wall 193 connects upper ends of the first and second annular walls 191 and 192 together. The sealing portion 1622 is embedded between the first and second annular walls 191 and 192 and may abut against the top wall 193.

In addition, in the present embodiment, the second pipe section 122 is a straight pipe, and the inner diameter, the outer diameter and the thickness of the second pipe section 122 from bottom to top are all kept constant.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. An atomizer is characterized by comprising a shell (11) with a liquid storage cavity (110) formed inside, a vent pipe (12) arranged in the shell (11) in a penetrating way, an atomizing component (13) arranged in the vent pipe (12) and communicated with liquid guide of the liquid storage cavity (110), and a base (16) arranged at one end of the shell (11);

base (16) including inlay in embedding portion (162) in shell (11), embedding portion (162) include this somatic part (1621) and sealing portion (1622), the outer wall face of this somatic part (1621) with the internal face clearance fit of shell (11), the outer wall face of sealing portion (1622) with the internal face interference fit of shell (11).

2. A nebulizer as claimed in claim 1, wherein the sealing portion (1622) is annular and is located at an end of the embedding portion (162) proximate the reservoir chamber (110).

3. A nebulizer as claimed in claim 1, wherein the sealing portion (1622) is formed with a guide slope (1623) on an outer wall surface of an end thereof adjacent to the reservoir chamber (110).

4. A nebulizer as claimed in claim 1, wherein the sealing portion (1622) is formed by an integral outward extension of the outer wall surface of the embedding portion (162).

5. A nebulizer as claimed in claim 1, further comprising a sealing sleeve (19) fitted over the embedding portion (162), the sealing portion (1622) being in interference fit with an inner wall surface of the housing (11) via the sealing sleeve (19).

6. A nebulizer as claimed in claim 1, wherein the axial length of the body portion (1621) is greater than the axial length of the sealing portion (1622).

7. A nebulizer as claimed in any one of claims 1 to 6, wherein the embedding portion (162) further comprises a connecting portion (1624), the sealing portion (1622), the connecting portion (1624) being located at each end of the body portion (1621).

8. A nebulizer as claimed in claim 7, wherein the outer wall surface of the connecting portion (1624) is an interference, transition or clearance fit with the inner wall surface of the housing (11).

9. Atomiser according to one of claims 1 to 6, characterised in that one end of the vent tube (12) is embedded in the base (16).

10. An electronic atomisation device comprising an atomiser as claimed in any one of claims 1 to 9.

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