Electronic atomizer having e-liquid leakage preventing structure

Abstract

Disclosed in the present invention is an electronic atomizer having an e-liquid leakage preventing structure, comprising a housing and an atomization assembly; a mouthpiece opening is formed in the upper end of the housing, and the mouthpiece opening is provided with a vapor discharge pipe inwardly connected thereto; a cavity between the inner wall of the housing, the vapor discharge pipe and the atomization assembly forms an e-liquid storage cavity for storing atomization e-liquid; the atomization assembly comprises a sealing cover, an atomization support and a bottom cover which are connected from top to bottom, the atomization support being internally provided with an atomization core; the atomization support comprises an air intake cavity, an atomization cavity and an e-liquid collection cavity which are transversely and separately arranged side by side, each having a closed upper end and an open lower end; the upper portion of the bottom cover is sleeved on the lower portion of the atomization support, and the bottom cover is provided with a first cavity and a second cavity, a gas flow blocking plate covering the second cavity of the bottom cover. The electronic atomizer has the beneficial effects that the air intake cavity and the atomization cavity which are transversely separated as well as winding gas flow paths avoid leakage caused by reverse outflow of e-liquid drops, the gas flow blocking plate and e-liquid absorbing blocks prevent the e-liquid drops from leaking or being inhaled into the mouth, and a gas return channel can gradually eliminate the vacuum state created in the e-liquid storage cavity.

Description

Electronic atomizer with anti-leakage structure Technical Field

[0001] The present invention relates to the technical field of electronic atomizers, and more particularly to an electronic atomizer with a liquid leakage-proof structure. Background Art

[0002] Existing electronic atomizer devices generally consist of a battery pack and an electronic atomizer. The battery pack houses a battery that powers the atomizer. The atomizer includes an atomizer core mounted on an atomizer base. The atomizer core includes a liquid conductor and a heating element. When powered, the heating element heats the atomized solution, or atomizing liquid, into a mist or aerosol. The atomizing liquid is the tobacco liquid stored in the atomizer's liquid reservoir. Electronic atomizer devices can be used as electronic cigarettes, herbal atomizers, and medicinal atomizers, among other applications.

[0003] The existing atomizer cores on the market use atomizer cores made of porous ceramics. The porous ceramic body has many intricately distributed but non-straight micropores inside. These combined micropores have the function of conducting and penetrating the atomized liquid. The atomized liquid generally flows from the liquid storage chamber into the porous ceramic body, and then penetrates into the heating element on the lower surface of the porous ceramic body. The heating element is energized and heated to heat the atomized liquid seeping out of the porous ceramic body and atomize it. During the operation of the atomizer, when the user draws on the electronic atomizer, the atomized liquid in the liquid storage chamber is continuously consumed, and a certain degree of vacuum will be generated in the liquid storage chamber. When the vacuum in the liquid storage chamber accumulates to a certain level, the atomized liquid stored therein is sucked back, making it difficult to penetrate through the porous ceramic body, resulting in a lack of atomized liquid when the heating element is working, resulting in a continuous decrease in the amount of atomization and even causing dry burning of the atomizer core, leading to its ablation and damage.

[0004] In addition, the existing atomizer is prone to leakage of atomized liquid droplets, and the temperature inside the atomizer is uneven, which easily causes the atomized electronic cigarette smoke to condense on the internal wall and condense into small droplets. The air intake channel and the smoke exhaust channel in the existing atomizer are generally arranged on the same vertical axis, so these small droplets are easy to overflow or leak back through the air flow channel, causing damage to the circuit or staining the hands; during use, the user is also likely to carry these small droplets out through the inhalation airflow of the air flow channel and easily be inhaled into the user's mouth, resulting in a poor user experience. Technical issues

[0005] In order to overcome the deficiencies of the above-mentioned technologies, the present invention provides an electronic atomizer with a liquid leakage-proof structure. Technical Solutions

[0006] The technical solution of the present invention is achieved as follows: an electronic atomizer with a leak-proof structure includes a hollow shell and an atomizer assembly that blocks an opening at the bottom of the shell. The upper end of the shell is provided with a suction port, which is inwardly connected to a mist exhaust pipe. The cavity between the inner wall of the shell, the mist exhaust pipe, and the atomizer assembly constitutes a liquid storage chamber for storing atomized liquid. The atomizer assembly includes a sealing cover, an atomizer bracket, and a bottom cover connected from top to bottom. The atomizer bracket is provided with an atomizer core.

[0007] The atomizing bracket includes an air inlet chamber and an atomizing chamber that are arranged side by side in a transverse manner, with a closed upper end and an open lower end. A liquid inlet and a mist outlet are provided in the middle of the upper end of the atomizing bracket, which are connected to the atomizing chamber. A mounting hole is provided below the liquid inlet, and the side wall of the atomizing core is sleeved in the mounting hole. The mist outlet is used to connect to the mist exhaust pipe.

[0008] The upper portion of the bottom cover is sleeved on the lower portion of the atomizer bracket, and the bottom of the bottom cover includes a first cavity and a second cavity which are arranged side by side in a transverse manner and are open at the upper end and closed at the lower end. The first cavity and the second cavity are respectively correspondingly engaged with the air inlet cavity and the atomizer cavity, wherein a first notch is provided between the first cavity and the second cavity, and an air inlet pipe is provided through the bottom of the first cavity to communicate with the air inlet cavity;

[0009] The second cavity of the bottom cover is covered with an air flow baffle, which separates the atomization cavity from the second cavity. A slanted bottom groove is provided in the middle of the air flow baffle, and an air intake hole is provided downward at the bottom low point of the slanted bottom groove. The outer edge of the air flow baffle is provided on a boss that encloses the second cavity.

[0010] Preferably, the sealing cover is made of a soft material and is covered on the upper half of the atomizing bracket, and is configured to seal the gap between the atomizing bracket and the inner wall of the shell, and to seal the gap between the mist outlet and the mist exhaust pipe. A liquid inlet through hole is provided on the sealing cover corresponding to the liquid inlet.

[0011] Preferably, the sealing cover includes an outer wall, which seals the gap between the atomizing bracket and the inner wall of the shell. The sealing cover also includes an air inlet pipe, which is provided in the gap between the mist outlet hole and the mist exhaust pipe.

[0012] Preferably, the atomizing bracket includes a horizontal plate wall arranged transversely at the upper end and an outer vertical wall and an inner vertical wall arranged vertically. The horizontal plate wall, the outer vertical wall and the inner vertical wall constitute two mutually separated air inlet chambers and atomizing chambers, and the liquid inlet and the mist outlet are arranged in the middle of the horizontal plate wall.

[0013] Preferably, the bottom cover includes a bottom plate wall and a surrounding wall, the lower part of the atomizer bracket is sleeved on the inner side of the surrounding wall, and a boss is provided on the inner lower part of the surrounding wall and the bottom plate wall corresponding to the lower part of the inner vertical wall of the atomizer bracket, and the bosses enclose the first cavity and the second cavity respectively.

[0014] Preferably, the upper outer wall of the atomizer bracket is provided with a transversely winding strip groove, the upper end of the strip groove is connected to the liquid inlet, and the lower end of the strip groove is connected to the air inlet cavity. The strip groove and the side wall of the sealing cover form an air return channel, and the air return channel can drain the air in the air inlet cavity to the liquid storage cavity.

[0015] Preferably, the atomization bracket further includes a liquid collecting cavity which is separated and arranged side by side with the air inlet cavity and the atomization cavity, and has a closed upper end and an open lower end. The bottom of the bottom cover further includes a third cavity which is separated and arranged side by side with the first cavity and the second cavity, and has an open upper end and a closed lower end. The third cavity is correspondingly snap-fitted with the liquid collecting cavity, and a second notch is provided between the second cavity and the third cavity.

[0016] Preferably, the first cavity or the third cavity of the bottom cover is filled with a liquid absorbent block, wherein the liquid absorbent block of the first cavity is provided with an air inlet opening at the first notch to connect the air inlet cavity and the first notch, and further connect the air inlet cavity and the atomization cavity.

[0017] Preferably, the atomizing core comprises a soft liquid-conducting body, a porous ceramic body and a heating body which are sequentially stacked and connected, and the soft liquid-conducting body is arranged upward and communicated with the liquid storage chamber.

[0018] Preferably, two columnar electrodes are provided at the bottom of the second cavity of the bottom cover, and the columnar electrodes abut against the atomizer core upwards. Beneficial effects

[0019] This electronic atomizer with a leak-proof structure includes an air intake chamber and an atomizing chamber that are laterally separated. External air enters through an air intake pipe at the bottom and passes through multiple tortuous airflow paths. Therefore, even if atomized liquid or condensed droplets leak from the atomizing core or the atomizing chamber, they are unlikely to flow back out of the air intake pipe through the tortuous airflow paths, thus preventing droplet leakage and even leaking into a battery assembly connected to the atomizer, further contaminating and corroding the internal circuitry and causing malfunctions.

[0020] In the electronic atomizer of the present invention, the atomizing core and the mist outlet are arranged transversely staggered on the airflow channel, rather than being arranged linearly on the axis of the airflow channel. This allows the atomized liquid to be heated and evaporated into an aerosol, which is first dispersed within the atomizing chamber. The aerosol is then fully disturbed by the positive impact of the upward airflow, thereby reducing the temperature of the aerosol or electronic cigarette mist and preventing the user from being burned by the high temperature.

[0021] The electronic atomizer of the present invention features a leak-proof structure that includes an airflow baffle and a liquid absorbing block. The baffle's slanted bottom groove collects small droplets from the atomizer core or condensation from the exhaust pipe, directing them to the liquid absorbing block for absorption. This prevents small droplets from being inhaled into the user's mouth during smoking, potentially leading to a negative user experience.

[0022] The electronic atomizer of the present invention features an air return channel on the sidewall of the atomizer support. This channel slowly guides air from the air inlet chamber to the liquid storage chamber, gradually eliminating the vacuum within the liquid storage chamber. This facilitates the flow of atomized liquid from the porous guide to the heating element, ensuring rapid and timely atomization. This prevents a lack of atomized liquid during operation, which can lead to a continuous decrease in vapor volume or even a dry burn of the atomizer core, resulting in ablation and damage, thereby ensuring the normal and stable operation of the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is an exploded perspective view of the atomizer according to an embodiment of the present invention;

[0024] FIG2 is a cross-sectional view of a housing of an atomizer according to an embodiment of the present invention;

[0025] FIG3 is an exploded perspective view of the atomizing assembly of the atomizer according to an embodiment of the present invention;

[0026] FIG4 is a front cross-sectional view of the atomizer according to an embodiment of the present invention;

[0027] FIG5 is a three-dimensional view of an atomizing bracket of an atomizer according to an embodiment of the present invention;

[0028] FIG6 is a cross-sectional view of an atomizing support of an atomizer according to an embodiment of the present invention;

[0029] FIG7 is a perspective view of a sealing cover of an atomizer according to an embodiment of the present invention;

[0030] FIG8 is a cross-sectional view of a sealing cover of an atomizer according to an embodiment of the present invention;

[0031] FIG9 is a perspective view of the bottom cover of the atomizer according to an embodiment of the present invention;

[0032] FIG10 is a perspective view of an airflow baffle of an atomizer according to an embodiment of the present invention;

[0033] FIG11 is a cross-sectional view of an atomizer core of an embodiment of the present invention;

[0034] FIG12 is a perspective view of a liquid absorption block of an atomizer according to an embodiment of the present invention;

[0035] FIG13 is a second front cross-sectional view of the atomizer according to an embodiment of the present invention;

[0036] FIG14 is a third front cross-sectional view of the atomizer according to an embodiment of the present invention;

[0037] FIG15 is a front view 1 of the atomizing bracket of the atomizer according to an embodiment of the present invention;

[0038] FIG16 is a fourth front cross-sectional view of the atomizer according to an embodiment of the present invention;

[0039] FIG17 is a second front view of the atomizing support of the atomizer according to the embodiment of the present invention. Best Mode for Carrying Out the Invention

[0040] The electronic atomizer device can be used as an electronic cigarette, herbal atomizer device, medicinal atomizer device, etc. The electronic atomizer of the present invention has a leak-proof structure and can be connected to a battery assembly to form an electronic atomizer device. In the following embodiments, the electronic atomizer of the present invention is mainly described as an electronic cigarette.

[0041] For the convenience of description, the mouthpiece 10 of the electronic atomizer with a leak-proof structure is placed vertically upward as shown in Figure 4. The descriptions of "upper, lower, upper part, lower part, upper end, lower end, above, below, upward, downward, horizontal, vertical" and other related components described in this document all refer to the positional relationship of the atomizer when the mouthpiece is placed vertically upward. Modes for Carrying Out the Invention

[0042] The present invention will be described in detail below through specific examples. Example 1

[0043] As shown in Figures 1-4, the electronic atomizer with a leak-proof structure of the present invention comprises a hollow housing 1 having a bottom opening 12, which is sealed with an atomizer assembly 2. The upper end of the housing 1 is provided with a suction nozzle 10, which is inwardly connected to a mist discharge pipe 11. The cavity between the inner wall of the housing 1, the mist discharge pipe 11, and the atomizer assembly 2 forms a liquid storage chamber 13 for storing atomized liquid. The atomizer assembly 2 comprises a sealing cover 21, an atomizer bracket 22, and a bottom cover 24, connected from top to bottom. The atomizer bracket 22 houses an atomizer core 23.

[0044] As shown in Figures 4 to 6, the atomizing bracket 22 is laterally separated and arranged with an air inlet chamber 221, an atomizing chamber 222 and a liquid collecting chamber 223 which are closed at the upper end and open at the lower end. The middle part of the upper end of the atomizing bracket 22 is provided with a liquid inlet 224 and a mist outlet hole 226 which are connected to the atomizing chamber 222. A mounting hole 225 is provided at the lower part of the liquid inlet 224. The side wall of the atomizing core 23 is sleeved in the mounting hole 225. The mist outlet hole 226 is used to connect to the mist exhaust pipe 11.

[0045] Specifically, the upper end of the atomizing bracket 22 is transversely provided with a horizontal plate wall 220, and vertically provided outer and inner vertical walls 228 and 229. The horizontal plate wall 220, outer and inner vertical walls 228 and 229 form three mutually separated air inlet chambers 221, atomizing chambers 222, and liquid collecting chambers 223. The liquid inlet 224 and mist outlet 226 are provided in the middle of the horizontal plate wall 220. The air inlet chamber 221 serves as the air intake space, the atomizing chamber 222 serves as the divergence space for the atomized liquid to evaporate into aerosol or electronic cigarette smoke, and the liquid collecting chamber 223 is a separate chamber used to accommodate the liquid absorption block 27 and collect and absorb small droplets of atomized liquid.

[0046] A laterally winding strip groove 227 is provided on both sides of the upper outer wall of the atomizer bracket 22, and the upper end of the strip groove 227 is also connected to the upper plane of the atomizer bracket 22 to form the same strip groove 2271. The strip groove 2271 is connected to the liquid inlet 224, and the lower end of the strip groove 227 is connected to the air inlet cavity 221. The strip groove 227 and the side wall of the sealing cover are enclosed to form an air return channel, which can drain the air in the air inlet cavity 221 to the liquid storage cavity 13. The bottom inlet of the return channel is formed in the air inlet cavity to form an air return port 2270.

[0047] As shown in Figures 4, 7, and 8, the sealing cover 21 is made of a soft material and covers the upper half of the atomizing bracket 22. It is configured to seal the gap between the atomizing bracket 22 and the inner wall of the housing 1, as well as the gap between the mist outlet hole 226 and the mist exhaust pipe 11. The sealing cover 21 is provided with a liquid inlet hole 214 corresponding to the liquid inlet 224, and a sealing tube 216 corresponding to the mist outlet hole 226. The sealing cover 21 is made of a soft material, such as silicone, which has good sealing properties.

[0048] Specifically, the sealing cover 21 is provided with an outer wall 210 , which seals the gap between the atomizing bracket 22 and the inner wall of the shell 2 . The sealing cover 21 is also provided with an air inlet pipe 244 , which is provided in the gap between the mist outlet 226 and the mist exhaust pipe 11 .

[0049] As shown in Figures 4, 9 and 10, the upper part of the bottom cover 24 is sleeved on the lower part of the atomizer bracket 22, and the bottom of the bottom cover 24 includes a first cavity 241, a second cavity 242 and a third cavity 243 which are laterally separated and open at the upper end and closed at the lower end. The first cavity 241, the second cavity 242 and the third cavity 243 are respectively correspondingly snapped together with the air inlet cavity 221, the atomization cavity 222 and the liquid collecting cavity 223, wherein a first notch 246 is provided between the first cavity 241 and the second cavity 242, and a second notch 247 is provided between the second cavity 242 and the third cavity 243. An air inlet pipe 244 is provided through the bottom of the first cavity 241 to communicate with the air inlet cavity 221.

[0050] Specifically, the bottom cover 24 is provided with a bottom plate wall 240 and a surrounding wall 248. The lower part of the atomizer bracket 22 is sleeved on the inner side of the surrounding wall 248. A boss 249 is provided on the inner lower part of the surrounding wall 248 and the bottom plate wall 240 corresponding to the lower part of the outer vertical wall 228 and the inner vertical wall 229 of the atomizer bracket. The boss 249 is a raised table-shaped body, or a short surrounding wall shape. The above-mentioned first cavity 241, second cavity 242 and third cavity 243 are respectively surrounded by the boss 249.

[0051] The second cavity 242 of the bottom cover is covered with an air flow baffle 25, which separates the atomizing cavity 222 from the second cavity 242. A slanted bottom groove 250 is provided in the middle of the air flow baffle 25, and a baffle through-hole 251 is provided downward at the bottom low point of the slanted bottom groove 250. The lower part of the air flow baffle 25 is provided with a liquid suction port 253 at the second notch 247, so that condensation or small droplets dripping to the lower part of the air flow baffle 25 can flow to the liquid suction block 27 through the liquid suction port 253. The outer edge 252 of the air flow baffle 25 is provided on the boss 249 that encloses the second cavity and can be buckled and pressed downward by the inner vertical wall 229 of the atomizing bracket, so that the bottom edge of the atomizing cavity 222 is sealed to prevent air or liquid leakage. The airflow baffle 25 is provided with an oblique bottom groove 250, which can be used to collect condensed liquid or small droplets that drip after the aerosol condenses on the wall of the atomizing chamber 222 and the smoke outlet pipe 11 when it is cooled. The condensed liquid flows to the lower side on the oblique bottom surface of the oblique bottom groove 250 and flows into the baffle through hole 251, and then further drips and flows to the liquid absorption block 27 provided in the first cavity 241 and the third cavity 243, and is adsorbed or collected by the liquid absorption block 27, thereby preventing the condensed liquid from being carried by the inhaled air flow and being inhaled into the mouth. When the inhaled air flow enters the atomizing chamber 222 from the air inlet chamber 221, it will be blocked by the airflow baffle 25 over a large area and only pass through the baffle through hole 251. Therefore, even if there is condensed liquid or small droplets below the airflow baffle 25, it is difficult to be inhaled and disturbed and carried back to the atomizing chamber 222, thereby preventing the condensed liquid from being carried by the inhaled air flow and being inhaled into the mouth.

[0052] The first cavity 241 and the third cavity 243 of the bottom cover are filled with a liquid absorption block 27, wherein the liquid absorption block 27 of the first cavity 241 is provided with a vent 270 at the first notch 246 to connect the air inlet cavity 221 and the first notch 246, and further connect the air inlet cavity 221 and the atomization cavity 222.

[0053] Two columnar electrodes 26 are provided at the bottom of the second cavity 242 of the bottom cover. The columnar electrodes 26 abut against the atomizer core 23 upwards. The columnar electrodes 26 are respectively connected to the two end electrodes of the heating element 233 described below, so that the heating element 233 can be powered and generate heat.

[0054] As shown in Figure 11, the atomizing core 23 includes a soft liquid-conducting liquid 231, a porous ceramic body 232, and a heating element 233, which are stacked and connected in sequence. The soft liquid-conducting liquid 231 is arranged upward and communicates with the liquid storage chamber 13. The soft liquid-conducting liquid 231 is made of a soft material with good adsorption capacity, for example, it can be made of organic cotton, inorganic cotton, glass fiber, non-woven fabric, etc. The porous ceramic body 232 is made of a porous ceramic material and has many tiny channels inside that can penetrate and adsorb the atomized liquid. The gaps or channels inside the soft liquid-conducting liquid 231 are more numerous and larger than the channels of the porous ceramic body 232, so its liquid-conducting capacity or liquid-conducting speed is better and faster than that of the porous ceramic body 232. In this way, the soft liquid-conducting liquid can serve as a buffer material between the liquid storage chamber and the porous ceramic body, so that the atomized liquid can be fully supplied to the porous ceramic body, and it can also prevent the atomized liquid from flowing too much and too quickly into the porous ceramic body, and it can also prevent leakage of the atomized liquid.

[0055] As shown in FIG4 , the working principle of the electronic atomizer with a liquid leakage prevention structure of the present invention is as follows: when the user inhales from the inhalation port, negative pressure is generated in the electronic atomizer, the columnar electrode 26 is energized to heat the atomizing core 23, and at the same time, the outside air enters the air inlet chamber 221 upward from the air inlet pipe 244, then turns downward through the vent 270 and the first notch 246 of the liquid absorbing block 27, enters the lower part of the air flow baffle 25, and then turns upward through the baffle through hole 251, and then enters the atomizing chamber 222. At this time, the atomized liquid in the liquid storage chamber 13 passes through the liquid inlet through hole 214 and the first notch 246 on the sealing cover. The liquid inlet 224 of the atomizer bracket penetrates downward, enters the soft liquid-conducting liquid 231 and the porous ceramic body 232 of the atomizer core, and seeps out from the lower surface of the porous ceramic body 232. The heating element 233 is now energized and heated, so the atomized liquid is heated and evaporated, and an aerosol, that is, electronic smoke, is generated from the lower surface of the porous ceramic body 232, which then diffuses to the atomizer chamber 222. At this time, the outside air has been inhaled into the atomizer chamber 222 and forms an inhaled airflow. Driven by the inhaled airflow, the electronic smoke further enters the exhaust pipe 11 and is finally inhaled into the user's mouth through the suction port 10 times. The route and direction indicated by the continuous hollow arrows shown in Figure 4 are the route and direction of the airflow entering and the smoke flowing out of the electronic atomizer of the present invention. The route and direction indicated by the continuous solid arrows shown in Figure 4 are the route and direction of the atomized liquid flowing or penetrating of the electronic atomizer of the present invention.

[0056] As shown in FIG4 , the electronic atomizer of the present invention has an air inlet chamber 221 and an atomizing chamber 222 that are laterally separated. External air flows through the air inlet pipe 244 at the bottom, the air inlet chamber 221, the air vent 270, the first notch 246, the baffle through-hole 251, and then into the atomizing chamber 222, passing through multiple tortuous airflow paths. Therefore, even if the atomizing core or the atomizing chamber has leaked atomized liquid or droplets condensed in the exhaust pipe 11, it is not easy to flow out of the air inlet pipe 244 in the opposite direction through the above-mentioned tortuous airflow paths, thereby avoiding the leakage of droplets, or even the leakage flowing into the battery assembly connected to the atomizer, further contaminating and corroding the internal circuit and causing malfunctions.

[0057] As shown in FIG4 , in the electronic atomizer of the present invention, in the atomizing chamber 222, the atomizing core 23 and the mist outlet 226 are arranged transversely staggered on the air flow channel, rather than being arranged in a straight line on the axis of the air flow channel. This allows the atomized liquid to be heated and evaporated into an aerosol at the bottom of the atomizing core 23 and then first dispersed into the atomizing chamber 222. The aerosol can be fully disturbed by the positive collision of the airflow entering upward through the baffle through hole 251, thereby reducing the temperature of the aerosol or electronic cigarette smoke, which is then inhaled into the user's mouth through the mist exhaust pipe 11, thereby preventing the inhaled smoke or the high temperature at the mouthpiece 10 from burning the mouth and avoiding damage to the user.

[0058] As shown in FIG13 , when a user smokes, electronic cigarette smoke is generated in the atomizing chamber 222 and further flows out through the exhaust pipe 11. Since the electronic cigarette smoke is a vapor-like mist formed by heating and evaporation, some of the mist will inevitably condense into small droplets on the inner walls of the atomizing chamber 222 and the exhaust pipe 11. When a large number of small droplets accumulate, they will drip downward along the inner walls of the atomizing chamber 222 and the exhaust pipe 11. At this time, the inclined bottom groove 250 of the airflow baffle 25 will collect these small droplets. Then, they will flow through the baffle through-hole 251 at the lowest point of the bottom of the inclined bottom groove 250 to the bottom of the second cavity 242, and then further flow to the first notch 246 and the second notch 247 on both sides to the liquid absorption block 27, and finally be absorbed by the liquid absorption block 27. In this way, the small droplets condensed in the electronic atomizer of the present invention will not be inhaled into the mouth when the user smokes, resulting in a poor user experience. The routes and directions indicated by the continuous solid arrows shown in FIG13 are the routes and directions in which the small liquid droplets generated by condensation in the electronic atomizer of the present invention flow and are absorbed by the liquid absorbing block.

[0059] As shown in Figures 14 and 15, when a user smokes for a long time, the atomized liquid in the liquid storage chamber 13 is continuously consumed. When the sealing performance of the liquid storage chamber 13 is good, the volume of the consumed atomized liquid is vacant, and if it is not filled by the incoming air, a vacuum state is easily formed. When the liquid storage chamber is in a vacuum state, due to the negative pressure, it is difficult for the atomized liquid to penetrate into the atomizer core. When the heating element 233 of the atomizer core is working, the amount of smoke that can be produced is continuously reduced due to the lack of atomized liquid. The atomizer core may even dry out due to the interruption of the atomized liquid flow, causing it to burn and damage. The electronic atomizer of the present invention has a transversely winding strip-shaped groove 227 on the upper outer wall of the atomizing bracket 22. The strip-shaped groove is connected to the liquid inlet 224, and the lower end of the strip-shaped groove 227 is connected to the air inlet chamber 221. The strip-shaped groove 227 and the side wall of the sealing cover enclose a return air channel, which can guide the air in the air inlet chamber 221 to the liquid storage chamber 13. The bottom entrance of the return air channel is formed in the air inlet chamber to form a return air port 2270. Therefore, when a vacuum is generated in the liquid storage chamber 13, the liquid storage chamber has a suction effect, and the air in the air inlet chamber 221 can enter the return air channel through the return air port 2270, and finally enter the liquid storage chamber 13 through the liquid inlet 224. The slowly entering air can gradually eliminate the vacuum state in the liquid storage chamber 13. This allows the atomized liquid to easily seep from the porous liquid guide to the heating element, ensuring rapid and timely atomization and supply. This prevents the lack of atomized liquid during operation of the heating element, which can lead to a continuous decrease in the amount of smoke, or even a stoppage of the flow, which can cause the atomizer core to dry out and cause ablation and damage, thereby ensuring the normal and stable operation of the atomizer. The continuous hollow arrows shown in Figures 14 and 15 indicate the route and direction of external air in the electronic atomizer of the present invention through the return air channel to enter the liquid storage chamber to eliminate the vacuum state.

[0060] As shown in Figures 16 and 17, when the pressure in the liquid storage chamber 13 of the electronic atomizer of the present invention is greater than the pressure in the air inlet chamber 221, although the return air channel is very narrow, it cannot completely prevent the atomized liquid in the liquid storage chamber 13 from flowing back into the air inlet chamber through the return air channel. That is, the atomized liquid can flow back from the liquid storage chamber 13 through the strip-shaped groove 227 to the return air port 2270 and drip into the air inlet chamber 221. At this time, since the liquid absorption block 27 is installed below the air inlet chamber 221 to absorb and store the dripping atomized liquid droplets, it can prevent the user from inhaling the dripping atomized liquid into the mouth through the inhalation airflow when smoking, which may lead to a poor user experience. Industrial Applicability

[0061] The above descriptions are merely preferred embodiments of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. An electronic atomizer with a liquid leakage prevention structure, comprising a hollow shell and an atomizing assembly blocking an opening at the bottom of the shell, a suction port being provided at the upper end of the shell, a demisting pipe being connected inwardly to the suction port, and a cavity between the inner wall of the shell, the demisting pipe and the atomizing assembly forming a liquid storage cavity for storing atomized liquid, characterized in that: The atomization assembly comprises a sealing cover, an atomization bracket and a bottom cover connected from top to bottom, and an atomization core is arranged in the atomization bracket; The atomizing bracket comprises an air inlet cavity and an atomizing cavity which are arranged in parallel and separated in a transverse manner and are closed at the upper end and open at the lower end. A liquid inlet and a mist outlet hole which are connected to the atomizing cavity are provided in the middle of the upper end of the atomizing bracket. A mounting hole is provided at the lower part of the liquid inlet. The side wall of the atomizing core is sleeved in the mounting hole. The mist outlet hole is used to connect the mist exhaust pipe. The upper part of the bottom cover is sleeved on the lower part of the atomizer bracket, and the bottom of the bottom cover includes a first cavity and a second cavity which are arranged in parallel and separated in a horizontal direction and have an open upper end and a closed lower end. The first cavity and the second cavity are respectively correspondingly buckled and connected with the air inlet cavity and the atomizer cavity, wherein a first notch is provided between the first cavity and the second cavity, and an air inlet pipe is provided through the bottom of the first cavity to communicate with the air inlet cavity; The second cavity of the bottom cover is covered with an air flow baffle, which separates the atomization cavity from the second cavity. A slanted bottom groove is provided in the middle of the air flow baffle, and an air intake hole is provided downward at the bottom low point of the slanted bottom groove. The outer edge of the air flow baffle is provided on a boss that encloses the second cavity.

2. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The sealing cover is made of soft material and covers the upper half of the atomizing bracket, and is configured to seal the gap between the atomizing bracket and the inner wall of the shell, and to seal the gap between the mist outlet hole and the mist exhaust pipe. A liquid inlet through hole is provided on the sealing cover corresponding to the liquid inlet.

3. The electronic atomizer with a liquid leakage prevention structure according to claim 2, characterized in that: The sealing cover comprises an outer side wall, and the outer side wall seals the gap between the atomizing bracket and the inner wall of the shell. The sealing cover also comprises an air inlet pipe, and the air inlet pipe is arranged in the gap between the mist outlet hole and the mist exhaust pipe.

4. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The atomizing bracket comprises a horizontal plate wall arranged transversely at the upper end and an outer vertical wall and an inner vertical wall arranged vertically. The horizontal plate wall, the outer vertical wall and the inner vertical wall constitute two mutually separated air inlet cavities and atomizing cavities. The liquid inlet and the mist outlet are arranged in the middle of the horizontal plate wall.

5. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The bottom cover includes a bottom plate wall and a surrounding wall, the lower part of the atomizer bracket is sleeved on the inner side of the surrounding wall, and bosses are provided on the inner lower part of the surrounding wall and the bottom plate wall corresponding to the lower part of the inner vertical wall of the atomizer bracket, and the bosses enclose the first cavity and the second cavity respectively.

6. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The upper outer wall of the atomizer bracket is provided with a transversely winding strip groove, the upper end of the strip groove is connected to the liquid inlet, and the lower end of the strip groove is connected to the air inlet cavity. The strip groove and the side wall of the sealing cover are enclosed to form an air return channel, and the air return channel can guide the air in the air inlet cavity to the liquid storage cavity.

7. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The atomization bracket also includes a liquid collecting cavity which is separated and arranged side by side with the air inlet cavity and the atomization cavity, and has a closed upper end and an open lower end. The bottom of the bottom cover also includes a third cavity which is separated and arranged side by side with the first cavity and the second cavity, and has an open upper end and a closed lower end. The third cavity is correspondingly snap-fitted and connected with the liquid collecting cavity, and a second notch is provided between the second cavity and the third cavity.

8. The electronic atomizer with a liquid leakage prevention structure according to claim 1 or 7, characterized in that: The first cavity or the third cavity of the bottom cover is filled with a liquid absorbent block, wherein the liquid absorbent block of the first cavity is provided with an air inlet opening at the first notch to connect the air inlet cavity and the first notch, and further connect the air inlet cavity and the atomization cavity.

9. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: The atomizing core comprises a soft liquid-conducting body, a porous ceramic body and a heating body which are sequentially stacked and connected. The soft liquid-conducting body is arranged upward and communicated with the liquid storage cavity.

10. The electronic atomizer with a liquid leakage prevention structure according to claim 1, characterized in that: Two columnar electrodes are arranged at the bottom of the second cavity of the bottom cover, and the columnar electrodes abut against the atomizer core upwards.

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