WO2021213375A1

WO2021213375A1 - Ultrasonic atomizer and electronic cigarette

Info

Publication number: WO2021213375A1
Application number: PCT/CN2021/088365
Authority: WO
Inventors: 刘建福; 钟科军; 郭小义; 尹新强; 易建华; 汪洋; 周永权
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2020-04-23
Filing date: 2021-04-20
Publication date: 2021-10-28

Abstract

An ultrasonic atomizer and an electronic cigarette. The ultrasonic atomizer comprises an atomization cavity (233); an ultrasonic atomization sheet (32) is provided on the bottom of the atomization cavity (233); an air inlet and an air outlet are formed on the top surface of the atomization cavity (233); the air inlet is formed to face an atomization region of the ultrasonic atomization sheet (32), and a distance between the air inlet and the ultrasonic atomization sheet (32) is less than a distance between the air outlet and the ultrasonic atomization sheet (32); and the cross sectional area of the air outlet is greater than that of the air inlet. The e-liquid is more fully atomized, and vapor comprises fewer e-liquid droplets, thereby being capable of effectively preventing a user from vaping the e-liquid droplets.

Description

Ultrasonic atomizer and electronic cigarette

Technical field

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

Background technique

In the ultrasonic electronic cigarette atomizer disclosed in Chinese Patent CN201620833328.6, the air inlet and outlet of the atomization cavity are arranged at equal distances from the bottom surface of the atomization cavity, and the cross-sectional area of the air inlet and the air outlet are almost the same. The airflow velocity of the air inlet and the air outlet are the same, which makes the atomization area of the ultrasonic atomizer sheet condense too much smoke oil, and the smoke entering the air outlet is not fully mixed with the airflow, which makes the smoke taste inconsistent by the user. In addition, droplets of e-liquid are contained in the smoke, which makes it easy for users to inhale e-liquid.

In addition, the flow direction of the air intake airflow in the atomization chamber of the existing ultrasonic atomizer is basically the same as the flow direction of the smoke generated by ultrasonic atomization, which is not conducive to the removal of smoke oil droplets contained in the smoke, and makes it easy for users to inhale smoke oil droplets. a feeling of.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the disadvantages in the prior art that the atomization area of the ultrasonic atomizer sheet is easy to condense e-liquid and the taste of the smoke is inconsistent, and to provide a method for avoiding the condensation of too much e-liquid in the ultrasonic atomization area and the taste of the smoke Consistent ultrasonic atomizer and electronic cigarette.

In order to solve the above technical problems, the present invention provides an ultrasonic atomizer, which includes an atomization cavity, an ultrasonic atomization sheet is arranged at the bottom of the atomization cavity, and an air inlet and an outlet are arranged on the top surface of the atomization cavity. The air inlet, the air inlet is arranged directly to the atomization area of the ultrasonic atomizing sheet, and the distance from the air inlet to the ultrasonic atomizing sheet is smaller than the distance from the air outlet to the ultrasonic atomizing sheet.

The air inlet of the present invention is arranged directly opposite to the atomization area of the ultrasonic atomizer sheet, and the distance from the air inlet to the ultrasonic atomizer sheet is smaller than the distance from the air outlet to the ultrasonic atomizer sheet, so that the ultrasonic atomizer of the present invention has the following advantages:

First, the airflow from the air inlet can more concentratedly wash or disperse the condensed e-liquid in the atomization area of the ultrasonic atomizer, so that the condensed e-liquid can be dispersed or spread, so it is easier to be ultrasonically atomized into smoke. That is to participate in the ultrasonic atomization again, so that the e-liquid is more fully atomized, and the e-liquid is atomized more efficiently. The ultrasonic atomizer is working and the e-liquid is atomized to emit smoke, that is to say, the rate of smoke is increased. Meet the needs of users for the amount of smoke;

Second, the inflow direction of the air inlet airflow is opposite to the spraying direction of the smoke generated by ultrasonic atomization, so that the smoke is carried by the air inlet airflow to deviate from the original flow direction and flow, and the smoke oil droplets in the smoke hit the atomization cavity The top surface and return to the ultrasonic atomizing sheet to participate in ultrasonic atomization again, which not only further improves the utilization rate and atomization efficiency of e-liquid, but also prevents users from inhaling e-liquid droplets in the smoke;

Third, the ultrasonic atomized smoke can be fully mixed with the airflow entering the atomization chamber and then discharged through the air outlet, so that the final smoke tasted by the user is more consistent, and effectively avoids more than two kinds of smoke in the same puff. Taste, such as smoke heat, fine smoke, etc.

Further, the cross-sectional area of the air outlet is larger than the cross-sectional area of the air inlet, so that the air inlet airflow of the atomization cavity can flow in rapidly, overcome the power of the ultrasonic atomization to spray the smoke, and add more smoke. The smoke oil droplets are blown to the atomization area of the ultrasonic atomizer sheet to participate in the ultrasonic atomization again; and the smoke in the atomization cavity can flow out from the air outlet at a relatively slow flow rate, thereby reducing or avoiding the smoke band out of the atomization cavity The smoke oil droplets are removed, so that the smoke oil droplets are accumulated in the atomizing cavity, and the probability of the user inhaling the smoke oil droplets is reduced.

In a specific embodiment, the top of the atomization cavity is provided with an air inlet, a central hole, and an air outlet groove, the central hole is arranged vertically, and the bottom of the central hole is the air inlet, and the air outlet groove The bottom of is the air outlet, and the air inlet is connected to the atomization cavity through the central hole.

Preferably, the central hole is arranged perpendicular to the atomization area of the ultrasonic atomization sheet, so that the air flow out of the central hole can flow to the ultrasonic atomization sheet at a rapid speed opposite to the spraying direction of the smoke generated by ultrasonic atomization. The surface of the fogging area.

In a specific embodiment, an adapter seat is arranged on the upper surface of the atomization cavity, and the atomization cavity is arranged between the ultrasonic atomization sheet and the adapter seat, and the outer circumference of the adapter seat is covered with storage. The two ends of the oil storage member are arranged directly opposite to the oil outlet of the oil bin, and the middle part of the oil storage member is in contact with the atomization area of the ultrasonic atomization sheet.

Preferably, an oil storage installation groove is provided on the outer periphery of the adapter seat, both ends of the oil storage member are inserted into the oil storage installation groove, and the air inlet and the oil storage installation groove Stagger the settings to prevent the oil reservoir from blocking the air inlet.

Preferably, an air supplement groove is provided in the oil storage installation groove, and the bottom of the air supplement groove communicates with the atomization cavity, and the top of the air supplement groove faces the oil outlet and is higher than the oil outlet. Describe the oil outlet setting.

In a specific embodiment, the ultrasonic atomizer further includes a housing and a plug body that are clamped and combined with each other, an air inlet channel communicating with the atmosphere is provided between the housing and the plug body, and the plug body is provided with An air hole, and the air passing hole communicates with the air inlet hole.

Based on the same inventive concept, the present invention also provides an electronic cigarette, which includes the ultrasonic atomizer described above.

Compared with the prior art, the beneficial effects of the present invention are:

1. The air inlet and air outlet of the atomization cavity are both set on the top of the atomization cavity, but the distance between the air inlet and the air outlet and the ultrasonic atomizer is different, so the impact force on the smoke is different, making the inlet The airflow flowing in from the air port flows directly to the atomization area of the ultrasonic atomizer sheet, disperses the condensed smoke oil on the ultrasonic atomizer sheet and re-participates in ultrasonic atomization, and the smoke can be fully mixed with the intake air flow in the atomization cavity. It flows out through the air outlet, so that the smoke from the air outlet has a better taste.

2. The cross-sectional area of the air inlet and the air outlet are different, so the air flow velocity of the air inlet is greater than that of the air outlet, which can make the smoke oil droplets in the smoke return to the ultrasonic atomizer to participate in the atomization again, thereby reducing users The phenomenon of smoke droplets.

Description of the drawings

Fig. 1 is a front cross-sectional view of the first embodiment of the ultrasonic atomizer of the present invention.

Fig. 2 is a cross-sectional view taken along the line AA of Fig. 1, and the arrows in the figure indicate the direction of air flow.

Fig. 3 is a schematic diagram of the three-dimensional structure of the adaptor of the present invention.

Fig. 4 is a schematic sectional axonometric structure diagram of the adapter seat of the present invention.

Fig. 5 is a front cross-sectional view of the adapter seat of the present invention, and the arrow in the figure indicates the direction of air flow.

Fig. 6 is an exploded view of the components of the first embodiment of the ultrasonic atomizer of the present invention.

In the picture:

1. Body; 11, shell; 12, plug body; 13, oil tank; 14, bottom cover; 15, air inlet channel; 111, suction nozzle; 112, air outlet pipe; 121, oil guide structure installation groove; 122, mist Chemical core installation slot; 123, through the air hole;

2. Oil guide structure; 21. Oil outlet; 22. Oil storage parts; 23. Adapter seat; 24. Spring; 231. Air inlet; 232. Center hole; 233. Atomization cavity; 234. Air outlet groove; 235. Oil storage installation groove; 2351. Air supply groove;

3. Atomization core; 31. Atomization sleeve; 32. Ultrasonic atomization sheet; 33. Insulation seat; 34. PCB board; 35. Electrode assembly.

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 relative positional relationship of each component, such as the description of top, bottom, left, right, etc., are described according to the layout direction of the drawings in the specification, and does not limit the structure of the patent.

Example 1:

As shown in Figures 1-6, the ultrasonic atomizer of this embodiment includes a body 1, an oil guiding structure 2 and an atomizing core 3.

The main body 1 includes a casing 11, a plug body 12 and a bottom cover 14 which are mutually clamped and combined. After the casing 11 and the plug body 12 are joined to each other, an oil tank 13 is formed inside. The housing 11 is provided with a suction nozzle 111 and an air outlet pipe 112. The plug body 12 is preferably a silicone plug with elasticity. The top of the plug body 12 is provided with an oil outlet 21, and the middle portion of the plug body 12 is provided with an oil guide structure installation groove 121 and an atomization core installation groove 122 in sequence from top to bottom.

The oil guide structure 2 is placed in the oil guide structure installation groove 121. The oil guide structure 2 includes an oil outlet 21, an oil storage member 22, and an adapter seat 23 provided on the plug body 12. The adapter seat 23 is installed in the oil guide structure installation groove 121, and the adapter seat 23 is The cavity is connected to the air outlet pipe 112, the outer circumference of the adapter seat 23 covers both ends of the oil storage member 22, and both ends of the oil storage member 22 are set directly opposite to the oil outlet 21 of the oil bin 13. The oil storage member 22 is preferably made of cotton material.

The atomizing core 3 includes a hollow atomizing sleeve 31 with conductivity, and an ultrasonic atomizing sheet 32, an insulating seat 33, and a PCB board 34 are sequentially arranged in the inner cavity of the atomizing sleeve 31 from top to bottom. An electrode assembly 35 is provided in the middle of the insulating seat 33 and the PCB board 34. The upper surface of the ultrasonic atomization sheet 32 is provided with an upper surface electrode and an atomization area, and the lower surface is provided with a lower surface electrode. The upper end of the atomization sleeve 31 is in contact with the upper surface electrode of the ultrasonic atomization sheet 32, and the lower end of the atomization sleeve 31 is wrapped around the bottom surface of the PCB board 34 as the first electrode connection end. The lower surface electrode of the ultrasonic atomization sheet 32 is connected with The electrode assembly 35 is electrically connected, and the electrode assembly 35 serves as a second electrode terminal.

The atomization core 3 is installed in the atomization core installation groove 123, and an atomization cavity 233 is provided between the ultrasonic atomization sheet 32 and the bottom surface of the adapter seat 23.

The bottom of the atomization cavity 233 is provided with an ultrasonic atomization sheet 32, and the bottom surface of the adapter seat 23 is the top surface of the atomization cavity 233.

The bottom of the adapter seat 23 is provided with an air inlet 231, a central hole 232, and an air outlet 234. The air inlet 231 is arranged horizontally, and the central hole 232 and the air outlet 234 are arranged vertically (that is, the central hole 232). , The outlet groove 234 is arranged perpendicular to the atomization area of the ultrasonic atomization sheet 32), the air inlet 231 communicates with the central hole 232, and the central hole 232 communicates with the atomization cavity 233, so that The bottom of the central hole 232 is the air inlet of the atomization cavity 233, and the air outlet groove 234 is in communication with the atomization cavity 233, so that the bottom of the air outlet groove 234 is the outlet of the atomization cavity 233. The air inlet, the air inlet (central hole 232) of the atomization cavity 233 is arranged directly opposite to the atomization area of the ultrasonic atomization sheet 32, and the air inlet of the atomization cavity 233 is connected to the ultrasonic atomization sheet 32 The distance of is smaller than the distance between the air outlet of the atomization cavity 233 and the ultrasonic atomization sheet 32, and the cross-sectional area of the air inlet of the atomization cavity is smaller than the cross-sectional area of the air outlet of the atomization cavity.

The bottom of the adapter seat 23 is provided with a spring 24, and the spring 24 resists the middle part of the oil storage member 22 against the atomization area of the ultrasonic atomization sheet 32.

An air inlet passage 15 communicating with the atmosphere is provided between the casing 11 and the plug body 12, an air passage hole 123 is provided on the plug body 12, and the air passage hole 123 is in communication with the air inlet hole 231.

In order to stably install the oil storage member 22, an oil storage member installation groove 235 is provided on the outer periphery of the adapter seat 23, and both ends of the oil storage member 22 are inserted into the oil storage member installation groove 235.

In order to prevent the oil storage member 22 from blocking the air inlet 231, the air inlet 231 and the oil storage installation groove 235 are staggered.

In order to facilitate the entry of outside air into the oil bin 13 when smoking, so that the e-liquid can smoothly flow out of the oil bin 13 and be absorbed by the oil storage member 22 to supplement the ultrasonic atomization of the ultrasonic atomization sheet 32, the oil storage member installation groove An air supplement groove 2351 is provided in 235, and the bottom of the air supplement groove 2351 is in communication with the atomization cavity 233, and the top of the air supplement groove 2351 is directly opposite to the oil outlet 21 and higher than the oil outlet 21 is set so that the air entering the atomization cavity 233 can enter the oil bin 13 through the air supplement groove 2351.

The air inlet of the atomization chamber 233 may be cylindrical, preferably a horn shape as shown in the figure, to increase the flow rate of the airflow and collect splashed smoke oil droplets.

In this embodiment, the ultrasonic atomizer is connected with the power supply assembly to form an electronic cigarette.

When the ultrasonic atomizer of this embodiment is used, the user sucks from the suction nozzle 111 of the body 1, so that the external air passes through the air hole 123, the air hole 231, and the central hole 232 from the air inlet channel 15 so as to be perpendicular to the ultrasonic atomizing sheet 32. The direction of the atomization area enters the atomization cavity 233 from the top of the atomization cavity 233, and the e-liquid flows out of the oil bin 13 through the oil outlet 21 to the oil storage member 22, and then is conducted by the oil storage member 22 to the ultrasonic atomization sheet 32. The atomization area is stored in the middle of the oil storage member 22. The ultrasonic atomization sheet 32 is electrically connected to the external power supply through the atomization sleeve 31 and the electrode assembly 35, and the smoke oil in the atomization area is ultrasonically atomized. When the smoke is not affected by the intake airflow, most of it is ejected toward the central hole 232. Under the action of the intake airflow out of the central hole 232, the flow direction of the smoke changes (flowing back toward the ultrasonic atomizer), so that the smoke is mixed. The smoke oil droplets impact on the bottom surface of the adapter seat 23 and condense and return to the ultrasonic atomization sheet to participate in ultrasonic atomization again. The smoke from which the smoke oil droplets are removed is fully mixed with the intake airflow in the atomization chamber 233 and sprayed from the outlet groove 234. At the same time, the e-liquid in the atomization area of the ultrasonic atomization sheet 32 is impacted by the rapid intake air flow and the thickness becomes thinner. After the ultrasonic atomization sheet oscillates at high frequency, it is easier to remove The smoke oil in the atomization area is atomized into smoke, which in turn makes the ultrasonic atomizer emit smoke faster.

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 atomizer, comprising an atomization cavity (233), an ultrasonic atomization sheet (32) is arranged at the bottom of the atomization cavity, and an air inlet and an air outlet are arranged on the top surface of the atomization cavity, and is characterized in The air inlet is arranged directly opposite to the atomization area of the ultrasonic atomizing sheet, and the distance from the air inlet to the ultrasonic atomizing sheet is smaller than the distance from the air outlet to the ultrasonic atomizing sheet.
The ultrasonic atomizer according to claim 1, wherein the cross-sectional area of the air outlet is larger than the cross-sectional area of the air inlet.
The ultrasonic atomizer according to claim 1, wherein the top of the atomization cavity is provided with an air inlet (231), a central hole (232) and an air outlet groove (234), and the central hole is vertical It is arranged straight, and the bottom of the central hole is the air inlet, the bottom of the air outlet groove is the air outlet, and the air inlet is connected to the atomization cavity through the central hole.
The ultrasonic atomizer according to claim 3, wherein the central hole is arranged perpendicular to the atomization area of the ultrasonic atomizer sheet.
The ultrasonic atomizer according to claim 3, characterized in that, an adapter (23) is provided on the upper surface of the atomization cavity, and the ultrasonic atomizer is arranged between the ultrasonic atomizer and the adapter. In the atomization cavity (233), the outer periphery of the adapter seat is covered with an oil storage member (22), and the two ends of the oil storage member are arranged directly opposite to the oil outlet (21) of the oil bin (13). The middle part of the oil storage member is in contact with the atomization area of the ultrasonic atomization sheet.
The ultrasonic atomizer according to claim 5, characterized in that an oil storage installation groove (235) is provided on the outer periphery of the adapter seat, and both ends of the oil storage member are inserted into the oil storage member In the installation groove, and the air inlet hole and the oil storage member installation groove are staggered.
The ultrasonic atomizer according to claim 5, characterized in that an oil storage installation groove (235) is provided on the outer periphery of the adapter seat, and an air supplement groove (2351) is provided in the oil storage installation groove , And the bottom of the air supplement groove communicates with the atomization cavity, and the top of the air supplement groove is arranged directly opposite to the oil outlet and higher than the oil outlet.
An ultrasonic atomizer according to claim 3, characterized in that it further comprises a housing (11) and a plug body (12) that are mutually clamped and combined, and a communication between the housing and the plug body is arranged In the air inlet passage (15), an air hole (123) is provided on the plug body, and the air hole is communicated with the air hole.
An electronic cigarette, characterized by comprising the ultrasonic atomizer according to any one of claims 1-8.