CN205432145U - Ultrasonic atomization ware and electron cigarette - Google Patents

Abstract

The utility model discloses an ultrasonic atomizer and an electronic cigarette. The ultrasonic atomizer comprises an ultrasonic atomizing sheet, a liquid storage chamber and an air flow channel; The liquid guiding structure communicates with the upper surface of the ultrasonic atomizing sheet; the upper surface of the ultrasonic atomizing sheet communicates with the air flow channel. The utility model uses a pure ultrasonic atomization method to atomize the liquid, without heat conduction loss, low power consumption, high efficiency, no hot atomizer, energy saving, purer atomization taste, no burnt smell, and Harmful substances produced by heating oil-conducting materials such as oil-conducting cotton or fibers will not be produced.

Description

An ultrasonic nebulizer and electronic cigarette

technical field

The utility model relates to an ultrasonic atomizer and an electronic cigarette.

Background technique

Existing atomizers use a heating wire to heat the e-liquid, and guide the e-liquid or liquid into the heating wire through the oil-conducting cotton or fiber. When the temperature of the heating wire is too high, it is easy to burn out the oil-conducting cotton or fiber and other oil-conducting materials. Harmful substances will be produced, which will damage the health of smokers, and it is easy to produce a sticky smell, which will affect the taste of smoking; and the heat of the heating wire will be absorbed by the oil-conducting material, resulting in heat conduction loss, high power consumption, low efficiency, and the atomizer is prone to burn out. hot.

Contents of the invention

The technical problem to be solved by the utility model is to provide an ultrasonic atomizer and an electronic cigarette in view of the deficiencies in the prior art.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an ultrasonic nebulizer, including an ultrasonic atomizing sheet, a liquid storage chamber and an air flow channel; the liquid storage chamber is used to connect the liquid storage chamber The liquid inside is introduced into the liquid guide structure on the upper surface of the ultrasonic atomizing sheet; the upper surface of the ultrasonic atomizing sheet communicates with the air flow channel.

The ultrasonic atomizing sheet includes a piezoelectric ceramic layer; both ends of the piezoelectric ceramic layer are in contact with a conductor, or both ends of the piezoelectric ceramic layer are printed or inlaid with conductors. There is no need to set micropores on the ultrasonic atomizing sheet to spray atomizing gas, so there will be no situation where the atomized gas particles are too large to block the micropores and the atomizing gas cannot be sprayed, and at the same time, it can better prevent the liquid leakage of the atomizer.

The air flow passage includes an air inlet pipe and an air outlet pipe arranged in the air inlet pipe, an air inlet passage is arranged between the inner wall of the air inlet pipe and the outer wall of the air outlet pipe, and the inner wall of the air inlet pipe and the outer wall of the air outlet pipe An air inlet passage is provided; an air outlet passage is provided in the outlet pipe; an air inlet gap for communicating with the air inlet passage and the air outlet passage is provided at the bottom end of the outlet pipe; the outlet passage and the ultrasonic atomizing sheet communicated; the top of the air intake pipe and the air outlet pipe are fixedly connected with the suction nozzle seat, and the air outlet channel communicates with the suction nozzle on the suction nozzle seat; an air inlet is provided on the suction nozzle seat; the air outlet pipe passes through The air intake channel communicates with the air intake port. The air flow channel can ensure that the external air enters the air intake channel from the air inlet, and then mixes with the smoke atomized by the atomizing sheet at the bottom of the air intake channel, and is sent to the user's mouth through the air outlet pipe and the suction nozzle. The structure is simple and easy to manufacture. .

The liquid guiding structure is in contact with the upper surface of the ultrasonic atomization sheet, and the bottom end of the air intake pipe abuts against the upper surface of the liquid guiding structure. The bottom end of the trachea will exert pressure on the liquid guiding structure, and the bottom end of the intake pipe and the liquid guiding structure are in contact under pressure), which can not only prevent the user from sucking the liquid guiding structure away when the user smokes too much, but also ensure The atomized gas and external air can enter the outlet pipe, but the atomized gas will not flow into the intake channel, which will affect the smoke taste and user experience.

The liquid guiding structure includes a porous material; the upper surface of the porous material covers or fills the liquid outlet at the bottom of the liquid storage chamber; the porous material is arranged in the elastic sealing sleeve, and the upper outer wall of the elastic sealing sleeve is in contact with the The inner wall of the bottom end of the liquid storage chamber is sealed and connected; the liquid storage chamber and the elastic sealing sleeve are all arranged in the shell. The elastic sealing sleeve can seal and fix the ultrasonic atomizing sheet to prevent liquid leakage, and at the same time prevent the ultrasonic atomizing sheet from being stuck and unable to vibrate.

A through hole is provided in the middle of the porous material, and the through hole is arranged under the air outlet pipe and communicated with the air outlet channel; the lower surface of the porous material is in contact with the atomizing sheet through a liquid guiding layer. The liquid guiding layer can ensure that the liquid can be introduced into the middle of the ultrasonic atomizing sheet more evenly.

The middle part of the upper surface of the porous material is sunken, and the sunken part communicates with the air outlet channel in the air outlet pipe; the porous material is integrally formed with the liquid-guiding layer, and the liquid-guiding layer and the ultrasonic atomizing sheet contact with the lower surface. The contact between the liquid and the ultrasonic atomizing sheet is more sufficient, and the liquid conduction is more reliable, which can well prevent the ultrasonic atomizing sheet from burning dry.

The liquid-guiding structure includes a porous material; the upper surface of the porous material is in contact with the lower surface of the ultrasonic atomizing sheet (it can be in a non-pressure state or in a pressure state (that is, abutment)); At least one liquid guide hole is opened on the ultrasonic atomizing sheet. When the ultrasonic atomizing sheet vibrates, the porous material can be squeezed, so that the liquid can quickly replenish the upper surface of the ultrasonic atomizing sheet through the liquid guide hole, preventing the ultrasonic atomizing sheet from vibrating and damaging the ultrasonic atomizing sheet when there is no liquid on the surface.

Both the ultrasonic atomizing sheet and the porous material are arranged in the installation seat; the top end of the installation seat is fixedly connected to the bottom end of the air intake pipe; the bottom end of the installation seat is fixedly connected to the middle part of the base; the bottom end of the porous material The surface is in contact with the upper surface of the middle part of the base; the outer wall of the base is fixedly connected with the inner wall of the bottom end of the liquid storage chamber; a channel is provided between the mounting seat and the inner wall of the liquid storage chamber and the inner wall of the base; the mounting seat A liquid inlet is opened at the bottom; the liquid inlet communicates with the liquid storage chamber through the channel. In this structure, the installation structure of the ultrasonic atomizing sheet and the air flow channel are an integrated structure, which is convenient to manufacture.

The nozzle seat is provided with an adjusting device for adjusting the air flow of the air inlet, through which the air flow of the air inlet can be adjusted, thereby improving the taste of the atomized gas.

An oil filling hole is provided on the liquid storage chamber, which is convenient for replenishing liquid when there is no liquid in the liquid storage chamber.

The atomizing sheet is elastically connected to the positive electrode and the negative electrode fixed in the base. The elastic connection can well avoid the open circuit caused by the melting of the pad due to high temperature or vibration during the operation of the ultrasonic atomizer.

The ultrasonic atomizing sheet is in contact with a temperature sensor, and the temperature sensor can sense the temperature of the ultrasonic atomizing sheet, thereby conveniently controlling the start and stop of the ultrasonic atomizing sheet and preventing damage to the ultrasonic atomizing sheet.

Correspondingly, the utility model also provides an electronic cigarette; it includes a power supply assembly and the above-mentioned ultrasonic nebulizer, and the power supply assembly provides working power for the ultrasonic atomizing sheet and the temperature sensor.

The power supply assembly can be arranged vertically with the ultrasonic nebulizer, or can be arranged side by side in the casing with the ultrasonic nebulizer, and the structure volume arranged side by side is smaller and the space utilization rate is higher.

The casing is provided with an observation port of the liquid storage chamber, which is convenient for observing the situation in the liquid storage chamber.

Compared with the prior art, the utility model has the beneficial effects as follows: the utility model adopts the pure ultrasonic atomization method to atomize the liquid, there is no loss of heat conduction, low power consumption, high efficiency, and the atomizer does not generate heat. Hot, energy-saving, atomized taste is more pure, will not produce burnt smell, and will not produce harmful substances produced by heating oil-conducting cotton or fiber and other oil-conducting materials; the structure is simple and ingenious, convenient to manufacture and use; the utility model There is no need to set micropores on the ultrasonic atomization sheet to spray atomized smoke, so there will be no situation where large liquid molecules block the micropores and cannot spray atomized smoke when atomizing gas, and it can better prevent atomization fluid leaks from the device.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is a structural schematic diagram of the ultrasonic atomizing sheet of the present invention;

Fig. 3 is a schematic diagram of the airflow direction of Embodiment 1 of the present utility model;

Figure 4 is an enlarged view of part A in Figure 3;

Fig. 5 is an enlarged view of part B in Fig. 3;

Fig. 6 is an exploded view of the oil guiding structure of Embodiment 1 of the present utility model;

Fig. 7 is the structural schematic diagram of embodiment 2 of the present utility model;

Fig. 8 is a structural schematic diagram of embodiment 3 of the present invention;

Fig. 9 is an enlarged view of part I in Fig. 8;

Fig. 10 is a schematic diagram of the external structure of the electronic cigarette in which the atomizer and the power supply assembly are arranged side by side.

detailed description

As shown in Figures 1, 2, 3, 7, and 8, the ultrasonic atomizers of Examples 1, 2, and 3 of the present invention include an ultrasonic atomizing sheet 1; the ultrasonic atomizing sheet 1 includes a piezoelectric ceramic layer 3; The upper and lower surfaces of the piezoelectric ceramic layer 3 are respectively in contact with the first conductive layer 1A (silver layer) and the second conductive layer 1B (silver layer); The liquid conducting structure on the upper surface of the conductive layer 1A is in contact; the liquid conducting structure communicates with the liquid storage chamber 2; the upper surface of the first conducting layer 1A communicates with the airflow channel; Conductors are printed or inlaid to form the above-mentioned ultrasonic atomizing sheet.

In Embodiments 1, 2, and 3 of the utility model, the ultrasonic atomizing sheets and the liquid storage chamber can be arranged in sequence along the direction of the atomized gas outflow, so that the liquid in the liquid storage chamber can flow into the oil-conducting structure under the action of its own gravity.

In Embodiments 1, 2, and 3 of the utility model, the air flow channel includes an air inlet pipe 31 and an air outlet pipe 32 arranged in the air inlet pipe 31, and an air inlet pipe 32 is arranged between the inner wall of the air inlet pipe 31 and the outer wall of the air outlet pipe 32. Air passage 33; the outlet pipe 32 is provided with an outlet passage 321; the bottom end of the outlet pipe 32 (that is, the end close to the ultrasonic atomizing sheet 1) is provided with an inlet for communicating with the inlet passage 33 and the outlet passage 321 The air gap 34; the air outlet channel 321) communicates with the upper surface of the ultrasonic atomizing sheet 1; the top of the air inlet pipe 31 and the air outlet pipe 32 (that is, the end far away from the ultrasonic atomizing sheet 1) is fixedly connected with the suction nozzle seat 5 , the air outlet channel 321 communicates with the suction nozzle 4 on the nozzle holder 5; an air inlet 6 is opened on the nozzle holder 5; the air inlet passage 33 communicates with the air inlet 6.

In Embodiments 1, 2, and 3 of the utility model, the nozzle seat 5 is provided with an adjusting device 27 for adjusting the air flow rate of the air inlet 6 (that is, an air regulating ring, and the corresponding position of the air regulating ring and the air inlet is opened. When using the air regulating hole, turn the air regulating ring to change the size of the connecting part between the air regulating hole and the outside, so as to change the air flow. When the air regulating hole and the air inlet overlap, the air intake will be the largest).

As shown in Fig. 3, Fig. 4 and Fig. 5, the liquid-guiding structure of Embodiments 1 and 2 of the utility model is in contact with the upper surface of the first conductive layer 1A (that is, the side away from the piezoelectric ceramic layer); The bottom end of 31 abuts against the upper surface of the liquid-guiding structure (that is, the surface of the liquid-guiding structure away from the ultrasonic atomizing sheet), which can not only control the amount of liquid entering the liquid-guiding structure, but also prevent the user from sucking the smoke too hard. The fluid-conducting structure is sucked away.

As shown in Figure 5, in the present utility model, the distance between the bottom end of the outlet pipe 32 and the upper surface of the ultrasonic atomizing sheet 1 is about 0.5-1.0mm (the distance can be adjusted according to actual needs), so as to prevent gas blockage in the air inlet passage 33 It cannot enter the air outlet channel 321, and can prevent the smoke from entering the air intake channel 33 and affecting the taste of the smoke.

The liquid guiding structure of the utility model embodiment 1 and 2 includes a porous material 7; the upper surface of the porous material 7 covers or fills the liquid outlet 21 at the bottom of the liquid storage chamber 2; the porous material 7 and/or the ultrasonic atomizing sheet 1 is set in the elastic sealing sleeve 8 (silicone sleeve can be used), and the outer wall of the upper part of the elastic sealing sleeve 8 (that is, the end of the elastic sealing sleeve close to the liquid storage chamber) is in contact with the bottom end of the liquid storage chamber 1 (that is, the end away from the suction nozzle) ) and the inner wall is sealed and connected; the liquid storage chamber 2 and the elastic sealing sleeve 8 are all set in the shell 15 .

In Example 1, the outer wall of the upper part of the silicone sleeve (the end close to the liquid storage chamber) is in contact with the inner wall of the bottom end of the liquid storage chamber, the outer wall of the lower part of the silicone sleeve (the end far away from the liquid storage chamber) is in contact with the inner wall of the atomization base 16, and the atomization base 16 The outer wall is in contact with the inner wall of the housing 15, and the atomization base 16 is provided with an atomization electrode 17 which is insulated and isolated from the atomization base 16 (insulated and isolated by the atomization insulating ring 28); the atomization base 16 and the top of the base 30 (close to the ultrasonic atomization One end of the sheet) is fixedly connected; the outer wall of the base 12 is screwed to the inner wall of the shell 15; the base 12 is fixed with an electrode ring 18 that is insulated from the base 12 (insulated and isolated by the base insulating ring 30 ) and in contact with the atomizing electrode 17.

As shown in Fig. 1, in embodiment 1, the liquid storage chamber 2 adopts a glass outer wall 36, and the inner side of the top of the glass outer wall is in contact with the outer wall of the top of the air intake pipe 31 through a silicone ring 35, so the sealing performance is good.

As shown in Figure 6, in embodiment 1, a hole 37 is provided in the middle of the porous material 7, and the hole 37 is located directly below the outlet pipe 32, so that the atomized gas is sucked out from the outlet pipe; the porous material 7 (such as cotton, etc. E-liquid material) the lower surface (that is, the side that is attached to the ultrasonic atomization sheet) is in contact with the first conductive layer 1A through the liquid-conducting layer 9. The liquid-conducting layer can be made of stainless steel mesh (to prevent the liquid from deteriorating due to rust), oil-conducting layer cotton layer.

As shown in Figure 7, in Example 2, the first conductive layer 1A and the second conductive layer 1B are respectively elastically connected to the positive electrode 25 and the negative electrode 26 fixed in the base 12 (for example, elastic thimbles can be used for elastic connection); the base 12 The main control board 30 is fixed inside, and the main control board 30 can control the start and stop of the ultrasonic atomizing sheet through the temperature of the ultrasonic atomizing sheet detected by the temperature sensor 22 (generally, the normal working temperature of the ultrasonic atomizing sheet is 130-220°C , when it exceeds 220°C, it should stop working to prevent damage to the ultrasonic atomizing sheet). In this embodiment, the bottom of the silicone sleeve is in contact with the pressing block 38, and the pressing block 38 can press the silicone sleeve to make the ultrasonic atomizing sheet more stable. The compression block 38 and the silicone sleeve are both fixed in the compression sleeve 39; the compression sleeve 39 is placed above the main control board 30.

In Embodiment 2, the oil filling hole 21 of the liquid storage chamber is set on the top (the end near the suction nozzle) of the liquid storage chamber (the outer wall of the liquid storage chamber can be made of transparent glass), and the oil filling hole is sealed by the hole cover 40, and the hole cover 40 and the suction The bottom of the mouth seat 5 (the end away from the suction nozzle) is sealed by a sealing ring 41 .

In Embodiment 2, the middle part of the upper surface of the porous material 7 is concave (that is, the thickness of the middle part is smaller than the thickness of the periphery), and the concave part communicates with the air outlet channel 321 in the air outlet pipe 32; the porous material 7 is connected to the liquid guide The layer 9 is integrally formed, and the liquid guiding layer 9 is in contact with the lower surface of the ultrasonic atomizing sheet 1 .

As shown in Figure 8 and Figure 9, in Embodiment 3 of the present utility model, the liquid conducting structure includes a porous material 7; the upper surface of the porous material 7 and the lower surface of the second conductive layer 1B (the side away from the piezoelectric ceramic layer ) contact; the ultrasonic atomizing sheet 7 is provided with at least one liquid guide hole 10; contact with the inner wall of the mounting seat 11; the top of the mounting seat 11 is fixedly connected to the bottom end of the air intake pipe 31; the bottom end of the mounting seat 11 is fixedly connected to the middle of the base 12 (protruding from the middle of the base 12); the porous material 7 The surface is in contact with the upper surface of the middle part of the base 12 (that is, filling the space between the base 12 and the ultrasonic atomizing sheet); the outer wall of the base 12 is fixedly connected with the inner wall of the bottom end (the end away from the suction nozzle) of the liquid storage chamber 2 A channel 13 is provided between the mounting seat 11 and the inner wall of the liquid storage chamber 2 and the inner wall of the base 12; a liquid inlet 14 is provided at the bottom of the mounting seat 11 (the end away from the suction nozzle); the liquid inlet 14 communicates with the liquid storage chamber 2 through the passage 13; the top end of the mounting seat 11 is sleeved on the bottom of the air intake pipe 31 (the end away from the suction nozzle).

Correspondingly, the electronic cigarette of the present invention includes a power supply assembly and the above-mentioned ultrasonic nebulizer; the power supply assembly provides working power for electronic components such as the ultrasonic atomizing sheet 1 and the temperature sensor 22 .

The power supply assembly and the ultrasonic nebulizer can be arranged vertically, that is, the top end of the power supply assembly is connected to the bottom end of the ultrasonic nebulizer (the opposite end of the suction nozzle).

Alternatively, the ultrasonic nebulizer and the power supply assembly can also be arranged side by side in the casing 23 (as shown in FIGS. 8 and 10 ). The battery assembly includes a battery compartment 46, and the battery 47 is fixed in the battery compartment 46; the elastic contact piece 45 is in contact with the top of the battery 47, and applies a downward force to the battery 47 to make the battery 47 more stable; the top of the battery compartment 46 is covered with an upper Cover 42, button 44 is fixed on the battery compartment 46 below the upper cover 42, and the button 44 contacts the keypad in the battery compartment 46 of the fixed seat; the bottom of the battery compartment 46 is sealed by the lower cover 51, and the inner wall of the lower cover 51 is in contact with the compression spring 50 One end is in contact, the other end of the compression spring is in contact with the contact cover 48, and the contact cover 48 is in contact with the bottom end of the battery 47 to further ensure the stability of the battery; the compression spring 50 is fixed by the spring fixing ring 49; the upper cover 42 is fixedly connected with the nozzle seat, and the lower cover 51 is fixedly connected with base 12. The structure of the electronic cigarette is smaller and more portable.

As shown in Fig. 10 , in order to observe the amount of liquid in the liquid storage chamber (the liquid storage chamber adopts a transparent outer wall) and determine whether liquid needs to be replenished, an observation port 24 for the liquid storage chamber is provided on the housing 23 .

The working principle of the utility model is as follows. When the smoker smokes, the air enters the air intake channel from the air inlet, and enters the air outlet channel through the bottom of the air intake channel. At the same time, the ultrasonic atomizing sheet oscillates to atomize the smoke oil on its surface , the atomized smoke is mixed with the outside air, and then sucked by the smoker through the mouthpiece.

Claims (10)

1. An ultrasonic atomizer is characterized by comprising an ultrasonic atomizing sheet (1), a liquid storage cavity (2) and an air flow channel; the liquid storage cavity (2) is communicated with a liquid guide structure used for guiding liquid in the liquid storage cavity (2) to the upper surface of the ultrasonic atomization sheet (1); the upper surface of the ultrasonic atomization sheet (1) is communicated with the airflow channel.

2. An ultrasonic atomizer according to claim 1, characterized in that the ultrasonic atomizing plate (1) comprises a piezoceramic layer (3); the two end faces of the piezoelectric ceramic layer (3) are respectively contacted with a conductor, or the two end faces of the piezoelectric ceramic layer (3) are respectively printed or embedded with the conductors.

3. An ultrasonic atomizer according to claim 1, wherein said air flow path comprises an air inlet tube (31) and an air outlet tube (32) arranged in said air inlet tube (31), and an air inlet path (33) is arranged between the inner wall of said air inlet tube (31) and the outer wall of said air outlet tube (32); an air outlet channel (321) is arranged in the air outlet pipe (32); the bottom end of the air outlet pipe (32) is provided with an air inlet gap (34) for communicating the air inlet channel (33) and the air outlet channel (321); the air outlet channel (321) is communicated with the upper surface of the ultrasonic atomization sheet (1); the top ends of the air inlet pipe (31) and the air outlet pipe (32) are fixedly connected with the suction nozzle base (5), and the air outlet channel (321) is communicated with a suction nozzle (4) on the suction nozzle base (5); an air inlet (6) is formed in the suction nozzle seat (5); the intake passage (33) communicates with the intake port (6).

4. An ultrasonic nebulizer as claimed in claim 3, wherein the liquid guiding structure is in contact with the upper surface of the ultrasonic atomization sheet (1); the bottom end of the air inlet pipe (31) is abutted to the upper surface of the liquid guide structure.

5. An ultrasonic nebulizer as claimed in claim 4, wherein the liquid conducting structure comprises a porous material (7); the upper surface of the porous material (7) covers or fills a liquid outlet (21) at the bottom end of the liquid storage cavity (2); the ultrasonic atomization sheet (1) is arranged in an elastic sealing sleeve (8), and the outer wall of the upper part of the elastic sealing sleeve (8) is connected with the inner wall of the bottom end of the liquid storage cavity (2) in a sealing way; the liquid storage cavity (2) and the elastic sealing sleeve (8) are arranged in the shell (15).

6. An ultrasonic atomizer according to claim 5, wherein a through hole (37) is formed in the middle of said porous material (7), and said through hole (37) is formed below said air outlet pipe (32) and communicated with said air outlet channel (321); the lower surface of the porous material (7) is in contact with the lower surface of the ultrasonic atomization sheet (1) through a liquid guide layer (9);

or,

the middle part of the upper surface of the porous material (7) is sunken, and the sunken part is communicated with the air outlet channel (321) in the air outlet pipe (32); the porous material (7) and the liquid guide layer (9) are integrally formed, and the liquid guide layer (9) is in contact with the lower surface of the ultrasonic atomization sheet (1).

7. An ultrasonic nebulizer as claimed in claim 3, wherein the liquid conducting structure comprises a porous material (7); the upper surface of the porous material (7) is in contact with the lower surface of the ultrasonic atomization sheet (1); the ultrasonic atomization sheet (7) is provided with at least one liquid guide hole (10); the ultrasonic atomization sheet (1) and the porous material (7) are both arranged in the mounting seat (11); the top end of the mounting seat (11) is fixedly connected with the bottom end of the air inlet pipe (31); the bottom end of the mounting seat (11) is fixedly connected with the middle part of the base (12); the lower surface of the porous material (7) is in contact with the upper surface of the middle part of the base (12); the outer wall of the base (12) is fixedly connected with the inner wall of the bottom end of the liquid storage cavity (2); a channel (13) is arranged between the mounting seat (11) and the inner wall of the liquid storage cavity (2) and between the mounting seat and the inner wall of the base (12); a liquid inlet (14) is formed in the bottom of the mounting seat (11); the liquid inlet (14) is communicated with the liquid storage cavity (2) through the channel (13).

8. An ultrasonic atomizer according to any one of claims 3 to 7, wherein said nozzle holder (5) is provided with an adjusting device (27) for adjusting the amount of air flow of said air inlet (6); the ultrasonic atomization sheet (1) is in contact with a temperature sensor (22).

9. An electronic cigarette comprising a power supply assembly; characterized by further comprising the ultrasonic atomizer of claim 8; the power supply assembly provides a working power supply for the ultrasonic atomization sheet (1) and the temperature sensor (22).

10. The electronic cigarette of claim 9, wherein the power supply assembly top end is connected to the ultrasonic atomizer bottom end; or the power supply assembly and the ultrasonic atomizer are arranged in parallel in a shell (23).