WO2020238836A1

WO2020238836A1 - Ultrasonic atomising core and ultrasonic atomiser

Info

Publication number: WO2020238836A1
Application number: PCT/CN2020/092031
Authority: WO
Inventors: 刘建福; 钟科军; 郭小义; 黄炜; 尹新强; 易建华; 周永权
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2019-05-27
Filing date: 2020-05-25
Publication date: 2020-12-03

Abstract

An ultrasonic atomising core and an ultrasonic atomiser thereof, the atomising core comprising an atomising base (31), an ultrasonic atomising plate (35) being mounted vertically on the atomising base (31), one side of an atomising surface (351) of the ultrasonic atomising plate (35) being provided with an atomising cavity (33), a second gas inlet (323) and a gas outlet (251) being arranged on the atomising cavity (33), an atomising region of the ultrasonic atomising plate (35) being in contact with the middle of an oil guide cotton (36), the second gas inlet (323) being arranged on the lower part of the atomising cavity (33) and being arranged away from the atomising surface (351) of the ultrasonic atomising plate (35), and the gas outlet (251) being arranged on the top part of the atomising cavity (33) and being arranged close to the atomising surface (351) of the ultrasonic atomising plate (35); when the gas flow passes through the atomising cavity (33), the smoke flow path inside the atomising cavity (33) forms a peak shape and is divided into an inert zone, a flow zone, and a rapid zone on the basis of the smoke flow rate, such that, during use, the gas flow does not easily take out the e-liquid particles in the atomising cavity (33) and the smoke taste is better.

Description

Ultrasonic atomizer core and ultrasonic atomizer

Technical field

The invention relates to an electronic cigarette, in particular to an ultrasonic atomization core and an ultrasonic atomizer.

Background technique

As shown in Fig. 1, the air inlet A and the air outlet B of the existing vertical ultrasonic atomization chamber D are arranged parallel to the ultrasonic atomizer C, and the axes of the air inlet A and the air outlet B basically coincide. Make the air flow straight through the surface of the oil-conducting cotton E. The surface of the oil-conducting cotton E is subjected to great air impact power, so it is easy to take the smoke oil particles on the surface of the oil-conducting cotton E out of the atomization cavity D, and finally be sucked by the user , Affect the taste of smoke.

In addition, Chinese Patent 2016208984658 discloses an ultrasonic electronic cigarette atomizer. The ultrasonic atomizer is placed in the housing of the electronic cigarette. The oil guide cotton is placed in the same direction as the ultrasonic atomizer, and the oil tank is set at the bottom. The e-liquid in the silo needs to be transmitted to the atomization surface of the ultrasonic atomizer through the oil guide rod, the oil storage body, and the oil guide cotton. During the e-liquid transportation, the e-liquid may climb slopes, such as from the oil guide to the The transportation process of the oil storage cotton, so the oil guiding effect is not very ideal, and the phenomenon of dry burning is prone to occur.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide an ultrasonic atomization core and an ultrasonic atomizer that are not easy to take out the smoke oil particles in the atomization cavity and have a better smoke taste.

In order to solve the above technical problems, the present invention provides an ultrasonic atomization core, including an atomization seat, on which an ultrasonic atomization sheet is vertically installed, and an atomization cavity is provided on one side of the atomization surface of the ultrasonic atomization sheet The atomization cavity is provided with a second air inlet and an air outlet, the atomization area of the ultrasonic atomization sheet is in contact with the middle of the oil-conducting cotton, and the second air inlet is arranged at the lower part of the atomization cavity and away from all The atomization surface of the ultrasonic atomization sheet is arranged, and the air outlet is arranged on the top of the atomization cavity and is arranged close to the atomization surface of the ultrasonic atomization sheet.

The second air inlet of the present invention is arranged at the lower part of the atomization cavity and away from the atomization surface of the ultrasonic atomization sheet, and the air outlet is arranged on the top of the atomization cavity and close to the ultrasonic atomization. The atomization surface of the film is set, so that the inlet airflow, the outlet airflow in the atomization chamber and the dynamic smoke emitted by the ultrasonic atomizer when the smoke is ultrasonically atomized by the ultrasonic atomizer are combined to form a peak-shaped flow curve, thereby reducing the air flow. The impact force of the smoke oil droplets in the atomization cavity greatly reduces the smoke oil droplets carried away in the smoke, and prevents the user from inhaling the smoke oil droplets. As shown in Figure 11, when an airflow I flows out from the air outlet through the second air inlet through the atomization chamber, the airflow will change the direction of the ultrasonic atomization sprayed smoke, making the smoke J flow in a peak shape, so it can be The atomization cavity is divided into three zones: inert zone F, flow zone G, and rapid zone H. The inert zone and the flow zone can ensure that the smoke oil droplets K overflowing from the surface of the ultrasonic atomizer during the ultrasonic atomization process fall on the atomization cavity The bottom may be condensed on the inner wall of the atomization chamber, so as to prevent the smoke droplets from flowing out of the atomization chamber with the airflow and being sucked by the user, thereby improving the purity of the smoke (there is no airflow in the inert zone or only the airflow with very slow flow rate passes through, even if It is impossible for the smoke droplets to be taken out of the atomization chamber by the airflow and be sucked by the user; the airflow velocity in the flow area is relatively slow. Even if there are smoke droplets in the flow area driven by the airflow, the smoke droplets are easily taken by the atomization chamber The inner wall blocks or condenses on the inner wall of the atomization cavity and cannot flow to the air outlet. The more smoke oil droplets condense on the inner wall of the atomization cavity, the more the smoke oil droplets are affected by its own gravity, and finally drip to the bottom of the atomization cavity; In the rapid area, the smoke is quickly taken out of the atomization cavity by the airflow to be sucked by the user, which not only prevents the accumulation of smoke in the atomization cavity and affects the taste of the second smoke, but also the smoke sprayed by ultrasonic atomization does not touch the inner wall of the atomization cavity Above, that is, the temperature of the smoke at this time is not absorbed by the wall of the atomization chamber, so the smoke tastes better).

In a specific embodiment, the second air inlet is arranged perpendicular to the ultrasonic atomizing sheet, and the air outlet is arranged parallel to the ultrasonic atomizing sheet, so as to promote the airflow to form a peak in the atomizing cavity more obviously The flow method of the curved shape helps to prevent users from inhaling smoke droplets.

Further, the position of the second air inlet is higher than the bottom surface of the atomization cavity by a distance, and the smoke oil droplets formed by the condensation smoke in the atomization cavity are stored at the bottom of the atomization cavity. There is a distance between the airflow and the smoke oil droplets at the bottom of the atomization cavity during the cavity, so that the smoke oil droplets at the bottom of the atomization cavity will not be affected by the flow force of the airflow, that is, to prevent the smoke oil droplets at the bottom of the atomization cavity from being blown away by the airflow. Therefore, it is possible to reduce the possibility of users inhaling smoke droplets.

Further, one side of the atomization cavity is provided with an oil storage tank communicating with the oil bin, and at least two oil guiding cotton penetration grooves are provided between the oil storage tank and the atomization cavity, and the oil guiding cotton penetration groove Baffles are respectively arranged near the ends of the atomization cavity, and a cotton pressing spring is arranged in the atomization cavity, and the cotton pressing spring presses the middle part of the oil guiding cotton against the atomization area of the ultrasonic atomization sheet, The two ends of the oil guiding cotton respectively extend into the oil storage tank through the oil guiding cotton penetration groove, and the side wall of the cotton pressing spring presses a part of the oil guiding cotton against the baffle plate. In this way, when the smoke oil in the oil tank is transferred to the oil storage tank, it can be absorbed by the oil guide cotton and transmitted to the ultrasonic atomizing sheet for ultrasonic atomization. At the same time, when the oil tank shows that there is no smoke oil, the oil guide cotton can still be short The e-liquid in the oil storage tank is absorbed within a period of time to provide ultrasonic atomization, so as to avoid the phenomenon of insufficient e-liquid supply and dry burning of the ultrasonic atomizer when the user perceives that there is no e-liquid in the oil bin. In addition, the amount of e-liquid transmitted to the ultrasonic atomizing sheet per unit time can be controlled by adjusting the compression of the cotton-pressing spring on the oil-guiding cotton on both sides of the baffle, which can prevent the e-liquid from flowing too fast and the ultrasonic atomization is not Sufficient, it can prevent too little smoke oil and dry burning.

Further, the oil-conducting cotton penetration groove is vertically arranged on the atomization surface side of the ultrasonic atomizing sheet, so that during the process of guiding the oil-conducting cotton, the e-liquid conduction speed is not affected by the gravity of the e-liquid. The amount of oil conduction in the time is uniform, so as to avoid the phenomenon of insufficient e-liquid supply and dry burning during the working process of the ultrasonic atomizer.

Further, the bottom of the atomization cavity is provided with an oil drain hole that is blocked with a sealing plug. When the user hears a grunting sound while smoking, the user can peel off the sealing plug, and then blow into the atomization cavity through the suction nozzle. The e-liquid deposited on the bottom of the atomization cavity can be discharged from the drain hole through the airflow, and the bottom of the atomization cavity can be cleaned to avoid the gurgling sound during smoking and the risk of inhaling the deposited e-liquid.

Further, a support is vertically arranged on the atomization seat, the oil storage tank and the oil guiding cotton penetration groove are arranged on the support, and the inner side of the support is different from the atomization surface of the ultrasonic atomization sheet. The atomization cavity is arranged in between, one end of the cotton pressing spring presses against the support, the other end presses the oil guiding cotton, and the side surface of the cotton pressing spring holds the oil guiding cotton against the The baffle plate facilitates the processing and assembly of the atomization core.

Further, the second air inlet is provided on the bracket below the oil storage tank, and the outer side of the bracket is provided with a second air inlet groove communicating with the second air inlet, so that the airflow of air can enter Atomization cavity.

Further, the upper part of the bracket is provided with a connecting groove, so as to form a stable connection with the oil storage body of the ultrasonic atomizer.

Based on the same inventive concept, the present invention also provides an ultrasonic atomizer, including a suction nozzle, an oil tank body, the suction nozzle and the oil tank body are connected to each other, and an annular oil tank is arranged between the suction nozzle and the oil tank body, wherein ,

An oil outlet is provided at the bottom of the oil bin,

The outer wall of the oil silo body is provided with a first air inlet, the side wall of the oil silo body is provided with a first air inlet groove communicating with the first air inlet, and the middle of the oil silo body is provided with a nozzle communicating with the suction nozzle. Airway

The lower part of the oil bin body is provided with the ultrasonic atomizing core, the oil outlet is communicated with the oil storage tank of the atomizing core, and the first air inlet groove is communicated with the second air inlet, The air outlet is communicated with the air outlet.

A protruding oil outlet section is provided at the bottom of the oil bin, the oil outlet is provided in the oil outlet section, and the oil outlet section is placed in the connecting groove of the atomizing core.

Compared with the prior art, the present invention has the following beneficial effects:

1. The second air inlet of the present invention can well prevent smoke oil droplets from flowing out of the atomization cavity with the airflow and being sucked by the user, thereby improving the purity of the smoke. The smoke in the rapid area of the atomization cavity is quickly taken out of the atomization cavity by the airflow. The user can not only avoid the accumulation of smoke in the atomization cavity and affect the taste of the second smoke, but also the smoke sprayed by ultrasonic atomization does not touch the inner wall of the atomization cavity, that is, the temperature of the smoke at this time is not affected by the atomization cavity wall Absorb, so the smoke tastes better.

2. In the inert zone and flow zone of the atomization chamber of the present invention, the weight of the smoke per unit volume is larger than the airflow power, so that the smoke is easy to condense on the inner wall of the atomization chamber or fall to the bottom, which can prevent the smoke from the user from inhaling particles sense.

3. The atomization area formed by the contact between the ultrasonic atomizing sheet and the oil-conducting cotton of the present invention is not arranged opposite to the second air inlet, so the air flow force does not affect the oil-conducting rate of the oil-conducting cotton.

4. Because the ultrasonic atomizer is placed vertically, even if a certain amount of smoke oil accumulates at the bottom, it will not affect the atomization efficiency of the atomization area of the ultrasonic atomizer, so as to achieve higher atomization efficiency of the ultrasonic atomizer. Better results.

Description of the drawings

Fig. 1 is a schematic diagram of the structure of an atomizing core part of an existing vertical atomizing sheet.

Fig. 2 is a structural diagram of an ultrasonic atomizer with a vertical atomizing sheet according to the present invention.

Fig. 3 is an exploded view of the ultrasonic atomizer with the atomizing sheet installed vertically according to the present invention.

Fig. 4 is a schematic diagram of the airflow direction of the ultrasonic atomizer with the vertical atomizing sheet of the present invention in use.

Figure 5 is a structural diagram of the oil tank body of the present invention.

Figure 6 is the first structural diagram of the atomizing core of the present invention.

Figure 7 is the second structural diagram of the atomizing core of the present invention.

Figure 8 is a partially cut perspective structural view of the bracket of the present invention.

Fig. 9 is a three-dimensional structural diagram of the bracket of the present invention in a rear view.

Figure 10 is a structural diagram of the atomization chamber of the present invention.

Fig. 11 is a view of the flow state when there is air flow in the atomization cavity of the present invention.

In the picture:

A. Air inlet; B. Air outlet; C. Ultrasonic atomization film; D. Atomization chamber; E. Oil guide cotton; F. Inert zone; G. Flow zone; H. Rapid zone; I. Airflow; J. Smoke; K, smoke droplets;

1. Suction nozzle;

2. Oil tank body; 21. First air inlet; 22. First air inlet groove; 23. Oil outlet section; 24. Oil outlet; 25. Air outlet; 251. Air outlet;

3. Atomization core; 31. Atomization seat; 32. Support; 33. Atomization cavity; 34. Oil discharge hole; 35. Ultrasonic atomization sheet; 36. Oil guide cotton; 37. Compression spring; 38. Seal Plug; 39. Atomizing sheet installation groove; 40. Electrode; 321. Connecting groove; 322. Oil storage tank; 323. The second air inlet; 324. The second air inlet groove; 325. Oil guiding cotton through groove; 326. Baffle; 351, atomized surface; 352, back;

4. Oil tank.

Detailed ways

The following further describes the present invention in combination with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

For ease of description, the description of the relative positional relationship of each component (such as: up, down, left, right, etc.) is described according to the layout direction of the accompanying drawings in the specification, and does not limit the structure of the patent.

Example 1:

As shown in Figures 2-11, an embodiment of the electronic cigarette ultrasonic atomizer of the present invention includes a suction nozzle 1, an oil tank body 2, an atomizing core 3. The suction nozzle 1 and the oil tank body 2 are connected to each other, and the suction nozzle 1 An annular oil tank 4 is arranged between the oil tank body 2 and the oil tank body 2.

The bottom of the oil bin 4 is provided with an oil outlet section 23 communicating with the oil bin 4, and an oil outlet 24 is provided in the oil outlet section 23. A first air inlet 21 is provided on the outer wall of the oil silo body 2, a first air inlet groove 22 is provided between the outer wall of the oil silo body and the outer wall of the oil silo, and an air outlet 25 communicated with the suction nozzle 1 is provided in the middle of the oil silo body 2 , The bottom of the air outlet duct 25 is provided with an air outlet 251.

The atomization core 3 is inserted into the lower part of the oil tank body 2, and the atomization core 3 includes an atomization seat 31 on which a support 32 and an ultrasonic atomization sheet 35 are vertically arranged. The ultrasonic atomizing sheet 35 has an atomizing surface 351 and a back surface 352, and the middle of the atomizing surface 351 is an atomizing area. The first surface electrode is arranged around the atomizing surface 351, and the second surface electrode is arranged on the back surface 352. The inner surface of the bracket 32, the bottom surface of the oil tank body 2 and the atomizing surface 351 of the ultrasonic atomizing sheet 35 enclose an atomizing cavity 33. The bottom of the atomization cavity 33 is provided with an oil drain hole 34 that is blocked by a sealing plug 38. When the user hears a grunting sound when smoking, the user can peel off the sealing plug 38, and then blow into the atomization cavity 33 to pass the airflow The e-liquid deposited on the bottom of the atomization cavity 33 is discharged from the drain hole 34 to avoid the gurgling sound and the risk of inhaling the deposited e-liquid. The upper part of the bracket 32 is provided with a connecting groove 321 for inserting the oil outlet section 23. The lower part of the connecting groove 321 is provided with an oil storage groove 322 communicating with the oil outlet 24, and the second air inlet of the atomization chamber 33 is arranged below the oil storage groove 322. The second air inlet 323 is perpendicular to the ultrasonic atomizing sheet 35, and a second air inlet groove 324 connecting the first air inlet groove 22 and the second air inlet 323 is provided on the outer side of the bracket 32.

The bracket 32 is also provided with two oil guiding cotton penetration grooves 325 connecting the oil storage tank 322 and the atomization cavity 33, and two oil guiding cotton penetration grooves 325 are respectively provided with baffles 326 outside. The oil guiding cotton penetration groove 325 is arranged perpendicular to the ultrasonic atomizing sheet 35, the atomizing surface 351 of the ultrasonic atomizing sheet 35 is provided with oil guiding cotton 36, and both ends of the oil guiding cotton 36 extend into the oil storage tank through the oil guiding cotton penetration groove 325 322, that is, the ultrasonic atomization sheet 35 is perpendicular to the e-liquid conduction direction on the oil-conducting cotton 36. Not only can the e-liquid in the oil bin 4 enter the oil storage tank 322, it can be absorbed by the oil-conducting cotton 36, and when the oil bin 4 shows When there is no e-liquid, the oil guiding cotton 36 can also absorb the e-liquid in the oil storage tank 322 and supply the ultrasonic atomization, so as to prevent the phenomenon of dry burning of the ultrasonic atomization sheet due to insufficient e-liquid supply. At the same time, the oil guiding cotton penetration groove 325 is vertically arranged on the support 32, and the contact position between the ultrasonic atomizing sheet 35 and the oil guiding cotton 36 is in the central area of the ultrasonic atomizing sheet 35, so the oil guiding cotton 36 is in the process of guiding the oil The conduction speed of the smoke oil is not affected by the gravity of the smoke oil, so the amount of oil conduction per unit time is uniform, thus avoiding the phenomenon of insufficient smoke oil supply and dry burning during the working process of the ultrasonic atomizer 35 (due to the thick smoke oil Under the action of the adsorption force of the oil-conducting cotton 36, when not smoking, the air pressure of the oil bunker 4 is consistent with the air pressure of the airflow channel, and the air-intake gap of the oil-conducting cotton penetrating groove 325 is blocked due to the viscosity of the oil itself, so The e-liquid is in a non-flowing state; when the user smokes, the air pressure in the airflow channel is lower than the air pressure in the oil bin, and the airflow overcomes the viscosity of the e-liquid to promote the e-liquid to flow, so the e-liquid can be continuously supplied to the ultrasonic atomizing sheet 35 to work).

A cotton pressing spring 37 is arranged between the bracket 32 and the oil guiding cotton 36. The left end of the cotton pressing spring 37 presses against the bracket 32, and the right end presses the oil guiding cotton 36 against the atomization area of the ultrasonic atomizing sheet 35, and the cotton pressing spring 37 is clamped between the two baffles 326, and the cotton spring 37 is pressed at the same time The oil guide cotton 36 is pressed against the baffle plate 326 on the side of the baffle plate 326. Therefore, the pressure of the oil guide cotton 36 on both sides of the baffle plate 326 can be controlled by the compression spring 37 to control the transmission to the ultrasonic atomization sheet 35 per unit time. The amount of e-liquid to avoid the phenomenon that the e-liquid diversion is too fast and the ultrasonic atomization is insufficient.

When the present invention is used, the smoker sucks through the mouthpiece 1, and the airflow enters from the first air inlet 21, flows into the atomization cavity 33 through the first air inlet groove 22, the second air inlet groove 324, and the second air inlet 323 , The smoke oil enters the oil storage tank 322 from the oil outlet 24, and is then guided to the atomization area of the ultrasonic atomization sheet 35 through the oil guiding cotton 36 for ultrasonic atomization. The smoke generated by ultrasonic atomization passes through the air outlet 251 and the air outlet 25. The mouthpiece 1 enters the mouth of the smoker.

The above are only the preferred embodiments of the application, and do not limit the application in any form. Although the application is disclosed as above in the preferred embodiments, it is not intended to limit the application. Anyone familiar with the profession, Without departing from the scope of the technical solution of the present application, making some changes or modifications using the technical content disclosed above is equivalent to an equivalent implementation case and falls within the scope of the technical solution.

Claims

An ultrasonic atomizing core, comprising an atomizing seat (31) on which an ultrasonic atomizing sheet (35) is vertically installed, and an atomizing cavity (33) is arranged on one side of the atomizing surface of the ultrasonic atomizing sheet ), a second air inlet (323) and an air outlet (251) are provided on the atomization cavity, and the atomization area of the ultrasonic atomization sheet is in contact with the middle of the oil-conducting cotton (36), characterized in that the second inlet The air port is arranged at the lower part of the atomization cavity and away from the atomization surface (351) of the ultrasonic atomization sheet, and the air outlet is arranged on the top of the atomization cavity and close to the ultrasonic atomization sheet. Atomized surface setting.
The ultrasonic atomizing core according to claim 1, wherein the second air inlet is arranged perpendicular to the ultrasonic atomizing sheet, and the air outlet is arranged parallel to the ultrasonic atomizing sheet.
The ultrasonic atomization core according to claim 1, wherein the position of the second air inlet is higher than the bottom surface of the atomization cavity by a distance.
The ultrasonic atomization core according to claim 1, characterized in that, an oil storage tank (322) connected to the oil bin (4) is provided on one side of the atomization cavity, and the oil storage tank and the atomization cavity At least two oil-guiding cotton penetration grooves (325) are provided between the oil-guiding cotton penetration grooves, and baffles (326) are respectively provided at the ends of the oil-guiding cotton penetration grooves close to the atomization cavity, and a cotton pressing spring ( 37), the cotton-pressing spring presses the middle of the oil-conducting cotton (36) against the atomization area of the ultrasonic atomizing sheet, and both ends of the oil-conducting cotton extend into the grooves of the oil-conducting cotton respectively. In the oil storage tank, and the cotton pressing spring presses the oil guiding cotton against the baffle.
The ultrasonic atomization core according to claim 4, wherein the oil guiding cotton penetration groove is vertically arranged on the atomization surface side of the ultrasonic atomization sheet.
The ultrasonic atomizing core according to claim 1, wherein the bottom of the atomizing cavity is provided with an oil drain hole (34) blocked by a sealing plug (38).
The ultrasonic atomization core according to claim 4, characterized in that a support (32) is vertically arranged on the atomization seat, and the oil storage groove and the oil guiding cotton penetration groove are arranged on the support The atomization cavity is arranged between the inner side surface of the support and the atomization surface of the ultrasonic atomization sheet. One end of the cotton compression spring presses against the support, and the other end presses the oil guiding cotton. The side surface of the cotton pressing spring abuts the oil guiding cotton against the baffle.
The ultrasonic atomizing core according to claim 7, characterized in that the second air inlet (323) is provided on the bracket below the oil storage tank, and the outer side of the bracket is provided with the second inlet The second air inlet groove (324) connected with the air port.
The ultrasonic atomizer according to claim 7, characterized in that the upper part of the bracket is provided with a connecting groove (321).
An ultrasonic atomizer includes a suction nozzle (1) and an oil tank body (2). The suction nozzle and the oil tank body are connected to each other, and an annular oil tank (4) is arranged between the suction nozzle and the oil tank body. Is that

An oil outlet (24) is provided at the bottom of the oil bin,

The outer wall of the oil silo body is provided with a first air inlet (21), the side wall of the oil silo body is provided with a first air inlet groove (22) communicating with the first air inlet, and the middle part of the oil silo body is provided with The air outlet that is connected to the mouthpiece (25);

The lower part of the oil tank body is provided with the atomization core (3) according to any one of claims 1-9, the oil outlet is in communication with the oil storage tank (322) of the atomization core, and the first An air inlet groove communicates with the second air inlet (323), and the air outlet channel communicates with the air outlet (251).
The ultrasonic atomizer according to claim 10, characterized in that a convex oil outlet section (23) is provided at the bottom of the oil tank, and the oil outlet is provided in the oil outlet section, and the oil outlet The oil section is placed in the connecting groove (321) of the atomizing core.